moved here from the newlib branch

[platform/upstream/curl.git] / src / hugehelp.c

/* NEVER EVER edit this manually, fix the mkhelp script instead! */
#include <stdio.h>
void hugehelp(void)
{
puts (
"                                  _   _ ____  _     \n"
"  Project                     ___| | | |  _ \\| |    \n"
"                             / __| | | | |_) | |    \n"
"                            | (__| |_| |  _ <| |___ \n"
"                             \\___|\\___/|_| \\_\\_____|\n"
"NAME\n"
"     curl - get a URL with FTP, TELNET, LDAP, GOPHER, DICT, FILE,\n"
"     HTTP or HTTPS syntax.\n"
"\n"
"SYNOPSIS\n"
"     curl [options] url\n"
"\n"
"DESCRIPTION\n"
"     curl is a client to get documents/files from servers,  using\n"
"     any  of  the supported protocols. The command is designed to\n"
"     work without user interaction or any kind of  interactivity.\n"
"\n"
"     curl  offers  a busload of useful tricks like proxy support,\n"
"     user authentication, ftp upload,  HTTP  post,  SSL  (https:)\n"
"     connections, cookies, file transfer resume and more.\n"
"\n"
"URL\n"
"     The URL syntax is protocol dependent. You'll find a detailed\n"
"     description in RFC 2396.\n"
"\n"
"     You can specify multiple URLs or parts of  URLs  by  writing\n"
"     part sets within braces as in:\n"
"\n"
"      http://site.{one,two,three}.com\n"
"\n"
"     or  you can get sequences of alphanumeric series by using []\n"
"     as in:\n"
"\n"
"      ftp://ftp.numericals.com/file[1-100].txt\n"
"      ftp://ftp.numericals.com/file[001-100].txt    (with leading\n"
"     zeros)\n"
"      ftp://ftp.letters.com/file[a-z].txt\n"
"\n"
"     It  is possible to specify up to 9 sets or series for a URL,\n"
"     but no nesting is supported at the moment:\n"
"\n"
"      http://www.any.org/archive[1996-1999]/vol­\n"
"     ume[1-4]part{a,b,c,index}.html\n"
"\n"
"OPTIONS\n"
"     -a/--append\n"
"          (FTP) When used in a ftp upload, this will tell curl to\n"
"          append to the target file instead of overwriting it. If\n"
"          the file doesn't exist, it will be created.\n"
"\n"
"     -A/--user-agent <agent string>\n"
"          (HTTP)  Specify  the  User-Agent  string to send to the\n"
"          HTTP server. Some badly done CGIs fail if its  not  set\n"
"          to \"Mozilla/4.0\".  To encode blanks in the string, sur­\n"
"          round the string with single  quote  marks.   This  can\n"
"          also be set with the -H/--header flag of course.\n"
"     -b/--cookie <name=data>\n"
"          (HTTP) Pass the data to the HTTP server as a cookie. It\n"
"          is supposedly the data  previously  received  from  the\n"
"          server  in a \"Set-Cookie:\" line.  The data should be in\n"
"          the format \"NAME1=VALUE1; NAME2=VALUE2\".\n"
"\n"
"          If no '=' letter is used in the line, it is treated  as\n"
"          a  filename  to  use  to  read previously stored cookie\n"
"          lines from, which should be used  in  this  session  if\n"
"          they  match.  Using  this  method  also  activates  the\n"
"          \"cookie parser\" which will make  curl  record  incoming\n"
"          cookies too, which may be handy if you're using this in\n"
"          combination with the  -L/--location  option.  The  file\n"
"          format of the file to read cookies from should be plain\n"
"          HTTP headers or the netscape cookie file format.\n"
"\n"
"          NOTE that the file specified with -b/--cookie  is  only\n"
"          used  as  input. No cookies will be stored in the file.\n"
"          To store cookies, save the HTTP headers to a file using\n"
"          -D/--dump-header!\n"
"\n"
"     -B/--ftp-ascii\n"
"          (FTP/LDAP)  Use ASCII transfer when getting an FTP file\n"
"          or LDAP info. For FTP, this can  also  be  enforced  by\n"
"          using an URL that ends with \";type=A\".\n"
"\n"
"     -c/--continue\n"
"          Continue/Resume   a   previous   file   transfer.  This\n"
"          instructs curl to continue appending data on  the  file\n"
"          where  it  was  previously  left, possibly because of a\n"
"          broken connection to the server. There must be a  named\n"
"          physical  file  to  append  to for this to work.  Note:\n"
"          Upload resume is depening on a command named  SIZE  not\n"
"          always present in all ftp servers! Upload resume is for\n"
"          FTP only.  HTTP resume is only possible  with  HTTP/1.1\n"
"          or later servers.\n"
"\n"
"     -C/--continue-at <offset>\n"
"          Continue/Resume  a  previous file transfer at the given\n"
"          offset. The given offset is the exact number  of  bytes\n"
"          that  will be skipped counted from the beginning of the\n"
"          source file before it is transfered to the destination.\n"
"          If  used with uploads, the ftp server command SIZE will\n"
"          not be used by curl. Upload resume  is  for  FTP  only.\n"
"          HTTP  resume  is  only  possible with HTTP/1.1 or later\n"
"          servers.\n"
"\n"
"     -d/--data <data>\n"
"          (HTTP) Sends the specified data in a  POST  request  to\n"
"          the  HTTP server. Note that the data is sent exactly as\n"
"          specified  with  no  extra  processing.   The  data  is\n"
"          expected  to  be \"url-encoded\". This will cause curl to\n"
"          pass the data to  the  server  using  the  content-type\n"
"          application/x-www-form-urlencoded. Compare to -F.\n"
"\n"
"          If  you  start  the  data  with  the letter @, the rest\n"
"          should be a file name to read the data from,  or  -  if\n"
"          you  want  curl  to read the data from stdin.  The con­\n"
"          tents of the file must already be url-encoded.\n"
"\n"
"     -D/--dump-header <file>\n"
"          (HTTP/FTP) Write the HTTP headers to this  file.  Write\n"
"          the FTP file info to this file if -I/--head is used.\n"
"\n"
"          This  option is handy to use when you want to store the\n"
"          cookies that a HTTP site  sends  to  you.  The  cookies\n"
"          could then be read in a second curl invoke by using the\n"
"          -b/--cookie option!\n"
"\n"
"     -e/--referer <URL>\n"
"          (HTTP) Sends the \"Referer Page\" information to the HTTP\n"
"          server. Some badly done CGIs fail if it's not set. This\n"
"          can also be set with the -H/--header flag of course.\n"
"\n"
"     -E/--cert <certificate[:password]>\n"
"          (HTTPS) Tells curl to  use  the  specified  certificate\n"
"          file  when  getting  a file with HTTPS. The certificate\n"
"          must be in PEM format.  If the optional password  isn't\n"
"          specified, it will be queried for on the terminal. Note\n"
"          that this certificate is the private key and  the  pri­\n"
"          vate certificate concatenated!\n"
"\n"
"     -f/--fail\n"
"          (HTTP)  Fail  silently  (no  output  at  all) on server\n"
"          errors. This is mostly done like this to better  enable\n"
"          scripts  etc  to  better  deal with failed attempts. In\n"
"          normal cases when a HTTP server fails to deliver a doc­\n"
"          ument,  it  returns  a  HTML document stating so (which\n"
"          often also describes why and more). This flag will pre­\n"
"          vent  curl  from  outputting  that  and  fail  silently\n"
"          instead.\n"
"\n"
"     -F/--form <name=content>\n"
"          (HTTP) This lets curl emulate a filled in form in which\n"
"          a  user has pressed the submit button. This causes curl\n"
"          to POST data using the content-type multipart/form-data\n"
"          according  to RFC1867. This enables uploading of binary\n"
"          files etc. To force the 'content' part to be read  from\n"
"          a  file,  prefix the file name with an @ sign. Example,\n"
"          to send your password file to the server, where  'pass­\n"
"          word'   is   the   name  of  the  form-field  to  which\n"
"          /etc/passwd will be the input:\n"
"\n"
"          curl -F password=@/etc/passwd www.mypasswords.com\n"
"          To read the file's content from stdin insted of a file,\n"
"          use - where the file name should've been.\n"
"\n"
"     -h/--help\n"
"          Usage help.\n"
"\n"
"     -H/--header <header>\n"
"          (HTTP) Extra header to use when getting a web page. You\n"
"          may specify any number of extra headers. Note  that  if\n"
"          you  should  add a custom header that has the same name\n"
"          as one of the internal ones curl would use, your exter­\n"
"          nally  set  header will be used instead of the internal\n"
"          one. This allows you to make even trickier  stuff  than\n"
"          curl  would  normally do. You should not replace inter­\n"
"          nally set headers without knowing perfectly  well  what\n"
"          you're doing.\n"
"\n"
"     -i/--include\n"
"          (HTTP) Include the HTTP-header in the output. The HTTP-\n"
"          header includes things like server-name,  date  of  the\n"
"          document, HTTP-version and more...\n"
"\n"
"     -I/--head\n"
"          (HTTP/FTP)  Fetch  the  HTTP-header  only! HTTP-servers\n"
"          feature the command HEAD which this uses to get nothing\n"
"          but  the header of a document. When used on a FTP file,\n"
"          curl displays the file size only.\n"
"\n"
"     -K/--config <config file>\n"
"          Specify which config file to read curl arguments  from.\n"
"          The  config  file  is a text file in which command line\n"
"          arguments can be written which then will be used as  if\n"
"          they  were  written  on the actual command line. If the\n"
"          first column of a config line is a '#'  character,  the\n"
"          rest of the line will be treated as a comment.\n"
"\n"
"          Specify  the filename as '-' to make curl read the file\n"
"          from stdin.\n"
"\n"
"     -l/--list-only\n"
"          (FTP) When listing an FTP directory, this switch forces\n"
"          a  name-only  view.   Especially  useful if you want to\n"
"          machine-parse the contents of an  FTP  directory  since\n"
"          the  normal  directory view doesn't use a standard look\n"
"          or format.\n"
"\n"
"     -L/--location\n"
"          (HTTP/HTTPS) If the server reports that  the  requested\n"
"          page  has  a  different  location  (indicated  with the\n"
"          header line Location:) this flag will let curl  attempt\n"
"          to reattempt the get on the new place. If used together\n"
"          with -i or -I, headers from all requested pages will be\n"
"          shown.\n"
"\n"
"     -m/--max-time <seconds>\n"
"          Maximum time in seconds that you allow the whole opera­\n"
"          tion to take.  This is useful for preventing your batch\n"
"          jobs  from  hanging  for  hours due to slow networks or\n"
"          links going down.  This doesn't work properly in  win32\n"
"          systems.\n"
"\n"
"     -M/--manual\n"
"          Manual. Display the huge help text.\n"
"\n"
"     -n/--netrc\n"
"          Makes  curl  scan  the  .netrc  file in the user's home\n"
"          directory for login name and password.  This  is  typi­\n"
"          cally  used  for  ftp  on unix. If used with http, curl\n"
"          will  enable  user  authentication.  See  netrc(5)  for\n"
"          details  on  the file format. Curl will not complain if\n"
"          that file hasn't the right permissions (it  should  not\n"
"          be  world nor group readable). The environment variable\n"
"          \"HOME\" is used to find the home directory.\n"
"\n"
"          A quick and very simple  example  of  how  to  setup  a\n"
"          .netrc   to   allow   curl   to   ftp  to  the  machine\n"
"          host.domain.com with user name\n"
"\n"
"          machine host.domain.com login myself password secret\n"
"\n"
"     -N/--no-buffer\n"
"          Disables the buffering of the output stream. In  normal\n"
"          work situations, curl will use a standard buffered out­\n"
"          put stream that will have the effect that it will  out­\n"
"          put  the  data  in chunks, not necessarily exactly when\n"
"          the data arrives.  Using this option will disable  that\n"
"          buffering.\n"
"\n"
"     -o/--output <file>\n"
"          Write  output  to  <file> instead of stdout. If you are\n"
"          using {} or [] to fetch multiple documents, you can use\n"
"          '#'  followed by a number in the <file> specifier. That\n"
"          variable will be replaced with the current  string  for\n"
"          the URL being fetched. Like in:\n"
"\n"
"            curl http://{one,two}.site.com -o \"file_#1.txt\"\n"
"\n"
"          or use several variables like:\n"
"\n"
"            curl http://{site,host}.host[1-5].com -o \"#1_#2\"\n"
"\n"
"     -O/--remote-name\n"
"          Write output to a local file named like the remote file\n"
"          we get. (Only the file part of the remote file is used,\n"
"          the path is cut off.)\n"
"\n"
"     -P/--ftpport <address>\n"
"          (FTP)  Reverses  the initiator/listener roles when con­\n"
"          necting with ftp. This switch makes Curl use  the  PORT\n"
"          command  instead  of  PASV. In practice, PORT tells the\n"
"          server to connect to the client's specified address and\n"
"          port,  while PASV asks the server for an ip address and\n"
"          port to connect to. <address> should be one of:\n"
"\n"
"          interface   i.e \"eth0\" to specify which interface's  IP\n"
"                      address you want to use  (Unix only)\n"
"\n"
"          IP address  i.e \"192.168.10.1\" to specify exact IP num­\n"
"                      ber\n"
"\n"
"          host name   i.e \"my.host.domain\" to specify machine\n"
"\n"
"          -           (any single-letter string) to make it  pick\n"
"                      the machine's default\n"
"\n"
"     -q   If used as the first parameter on the command line, the\n"
"          $HOME/.curlrc file will not be read and used as a  con­\n"
"          fig file.\n"
"\n"
"     -Q/--quote <comand>\n"
"          (FTP)  Send  an  arbitrary  command  to  the remote FTP\n"
"          server, by using the QUOTE command of the  server.  Not\n"
"          all  servers support this command, and the set of QUOTE\n"
"          commands are server specific! Quote commands  are  sent\n"
"          BEFORE  the  transfer is taking place. To make commands\n"
"          take place after a  successful  transfer,  prefix  them\n"
"          with a dash '-'. You may specify any amount of commands\n"
"          to be run before and after the transfer. If the  server\n"
"          returns  failure  for  one  of the commands, the entire\n"
"          operation will be aborted.\n"
"\n"
"     -r/--range <range>\n"
"          (HTTP/FTP) Retrieve a byte range (i.e a  partial  docu­\n"
"          ment)  from  a  HTTP/1.1  or  FTP server. Ranges can be\n"
"          specified in a number of ways.\n"
"\n"
"          0-499     specifies the first 500 bytes\n"
"\n"
"          500-999   specifies the second 500 bytes\n"
"\n"
"          -500      specifies the last 500 bytes\n"
"\n"
"          9500      specifies the bytes from offset 9500 and for­\n"
"                    ward\n"
"\n"
"          0-0,-1    specifies the first and last byte only(*)(H)\n"
"          500-700,600-799\n"
"                    specifies 300 bytes from offset 500(H)\n"
"\n"
"          100-199,500-599\n"
"                    specifies two separate 100 bytes ranges(*)(H)\n"
"\n"
"     (*) = NOTE that this will cause the server to reply  with  a\n"
"     multipart response!\n"
"\n"
"     You  should  also be aware that many HTTP/1.1 servers do not\n"
"     have this feature enabled, so that when you attempt to get a\n"
"     range, you'll instead get the whole document.\n"
"\n"
"     FTP  range  downloads only support the simple syntax 'start-\n"
"     stop' (optionally with  one  of  the  numbers  omitted).  It\n"
"     depends on the non-RFC command SIZE.\n"
"\n"
"     -s/--silent\n"
"          Silent  mode.  Don't  show progress meter or error mes­\n"
"          sages.  Makes Curl mute.\n"
"\n"
"     -S/--show-error\n"
"          When used with -s it makes curl show error  message  if\n"
"          it fails.\n"
"\n"
"     -t/--upload\n"
"          Transfer  the  stdin  data  to the specified file. Curl\n"
"          will read everything from stdin  until  EOF  and  store\n"
"          with  the  supplied  name. If this is used on a http(s)\n"
"          server, the PUT command will be used.\n"
"\n"
"     -T/--upload-file <file>\n"
"          Like -t, but this transfers the specified  local  file.\n"
"          If  there  is  no  file part in the specified URL, Curl\n"
"          will append the local file name. NOTE that you must use\n"
"          a  trailing  / on the last directory to really prove to\n"
"          Curl that there is no file name or curl will think that\n"
"          your  last  directory  name  is the remote file name to\n"
"          use. That will most likely cause the  upload  operation\n"
"          to  fail.  If this is used on a http(s) server, the PUT\n"
"          command will be used.\n"
"\n"
"     -u/--user <user:password>\n"
"          Specify user and password to  use  when  fetching.  See\n"
"          README.curl  for  detailed examples of how to use this.\n"
"          If no password is  specified,  curl  will  ask  for  it\n"
"          interactively.\n"
"\n"
"     -U/--proxy-user <user:password>\n"
"          Specify  user and password to use for Proxy authentica­\n"
"          tion. If no password is specified, curl will ask for it\n"
"          interactively.\n"
"     -v/--verbose\n"
"          Makes   the  fetching  more  verbose/talkative.  Mostly\n"
"          usable for debugging. Lines  starting  with  '>'  means\n"
"          data sent by curl, '<' means data received by curl that\n"
"          is hidden in normal cases and lines starting  with  '*'\n"
"          means additional info provided by curl.\n"
"\n"
"     -V/--version\n"
"          Displays  the  full  version of curl, libcurl and other\n"
"          3rd party libraries linked with the executable.\n"
"\n"
"     -w/--write-out <format>\n"
"          Defines what to display after a completed and  success­\n"
"          ful  operation. The format is a string that may contain\n"
"          plain text mixed with  any  number  of  variables.  The\n"
"          string can be specified as \"string\", to get read from a\n"
"          particular file you specify it \"@filename\" and to  tell\n"
"          curl to read the format from stdin you write \"@-\".\n"
"\n"
"          The variables present in the output format will be sub­\n"
"          stituted by the value or text that curl thinks fit,  as\n"
"          described  below.  All  variables  are  specified  like\n"
"          %{variable_name} and to output  a  normal  %  you  just\n"
"          write  them  like %%. You can output a newline by using\n"
"          \\n, a carrige return with \\r and a tab space with \\t.\n"
"\n"
"          NOTE:  The  %-letter  is  a  special  letter   in   the\n"
"          win32-environment,  where  all occurrences of % must be\n"
"          doubled when using this option.\n"
"\n"
"          Available variables are at this point:\n"
"\n"
"          url_effective  The URL that was fetched last.  This  is\n"
"                         mostly meaningful if you've told curl to\n"
"                         follow location: headers.\n"
"\n"
"          http_code      The numerical code that was found in the\n"
"                         last retrieved HTTP(S) page.\n"
"\n"
"          time_total     The  total  time,  in  seconds, that the\n"
"                         full operation lasted. The time will  be\n"
"                         displayed with millisecond resolution.\n"
"\n"
"          time_namelookup\n"
"                         The  time,  in seconds, it took from the\n"
"                         start until the name resolving was  com­\n"
"                         pleted.\n"
"\n"
"          time_connect   The  time,  in seconds, it took from the\n"
"                         start until the connect  to  the  remote\n"
"                         host (or proxy) was completed.\n"
"          time_pretransfer\n"
"                         The  time,  in seconds, it took from the\n"
"                         start until the file  transfer  is  just\n"
"                         about  to  begin. This includes all pre-\n"
"                         transfer commands and negotiations  that\n"
"                         are  specific  to  the particular proto­\n"
"                         col(s) involved.\n"
"\n"
"          size_download  The total  amount  of  bytes  that  were\n"
"                         downloaded.\n"
"\n"
"          size_upload    The  total  amount  of  bytes  that were\n"
"                         uploaded.\n"
"\n"
"          speed_download The average  download  speed  that  curl\n"
"                         measured for the complete download.\n"
"\n"
"          speed_upload   The  average upload speed that curl mea­\n"
"                         sured for the complete download.\n"
"\n"
"     -x/--proxy <proxyhost[:port]>\n"
"          Use specified proxy. If the port number is  not  speci­\n"
"          fied, it is assumed at port 1080.\n"
"\n"
"     -X/--request <command>\n"
"          (HTTP)  Specifies a custom request to use when communi­\n"
"          cating with the HTTP  server.   The  specified  request\n"
"          will be used instead of the standard GET. Read the HTTP\n"
"          1.1 specification for details and explanations.\n"
"\n"
"          (FTP) Specifies a custom FTP command to use instead  of\n"
"          LIST when doing file lists with ftp.\n"
"\n"
"     -y/--speed-time <time>\n"
"          If a download is slower than speed-limit bytes per sec­\n"
"          ond during  a  speed-time  period,  the  download  gets\n"
"          aborted. If speed-time is used, the default speed-limit\n"
"          will be 1 unless set with -y.\n"
"\n"
"     -Y/--speed-limit <speed>\n"
"          If a download is slower than this given speed, in bytes\n"
"          per  second,  for  speed-time  seconds it gets aborted.\n"
"          speed-time is set with -Y and is 30 if not set.\n"
"\n"
"     -z/--time-cond <date expression>\n"
"          (HTTP) Request to get a file  that  has  been  modified\n"
"          later  than  the  given  time and date, or one that has\n"
"          been modified before that time. The date expression can\n"
"          be all sorts of date strings or if it doesn't match any\n"
"          internal ones, it tries to get the time  from  a  given\n"
"          file  name  instead!  See  the GNU date(1) man page for\n"
"          date expression details.\n"
"          Start the date expression with a dash (-)  to  make  it\n"
"          request  for  a  document  that is older than the given\n"
"          date/time, default is a document that is newer than the\n"
"          specified date/time.\n"
"\n"
"     -3/--sslv3\n"
"          (HTTPS) Forces curl to use SSL version 3 when negotiat­\n"
"          ing with a remote SSL server.\n"
"\n"
"     -2/--sslv2\n"
"          (HTTPS) Forces curl to use SSL version 2 when negotiat­\n"
"          ing with a remote SSL server.\n"
"\n"
"     -#/--progress-bar\n"
"          Make  curl  display  progress information as a progress\n"
"          bar instead of the default statistics.\n"
"\n"
"     --crlf\n"
"          (FTP) Convert LF to CRLF  in  upload.  Useful  for  MVS\n"
"          (OS/390).\n"
"\n"
"     --stderr <file>\n"
"          Redirect  all  writes  to  stderr to the specified file\n"
"          instead. If the file name is a plain '-', it is instead\n"
"          written to stdout. This option has no point when you're\n"
"          using a shell with decent redirecting capabilities.\n"
"\n"
"FILES\n"
"     ~/.curlrc\n"
"          Default config file.\n"
"\n"
"ENVIRONMENT\n"
"     HTTP_PROXY [protocol://]<host>[:port]\n"
"          Sets proxy server to use for HTTP.\n"
"\n"
"     HTTPS_PROXY [protocol://]<host>[:port]\n"
"          Sets proxy server to use for HTTPS.\n"
"\n"
"     FTP_PROXY [protocol://]<host>[:port]\n"
"          Sets proxy server to use for FTP.\n"
"\n"
"     GOPHER_PROXY [protocol://]<host>[:port]\n"
"          Sets proxy server to use for GOPHER.\n"
"\n"
"     ALL_PROXY [protocol://]<host>[:port]\n"
"          Sets proxy server to use if no protocol-specific  proxy\n"
"          is set.\n"
"\n"
"     NO_PROXY <comma-separated list of hosts>\n"
"          list of host names that shouldn't go through any proxy.\n"
"          If set to a asterisk '*' only, it matches all hosts.\n"
"     COLUMNS <integer>\n"
"          The width of the terminal.  This variable only  affects\n"
"          curl when the --progress-bar option is used.\n"
"\n"
"EXIT CODES\n"
"     There exists a bunch of different error codes and their cor­\n"
"     responding error messages that may appear during bad  condi­\n"
"     tions. At the time of this writing, the exit codes are:\n"
"\n"
"     1    Unsupported protocol. This build of curl has no support\n"
"          for this protocol.\n"
"\n"
"     2    Failed to initialize.\n"
"\n"
"     3    URL malformat. The syntax was not correct.\n"
"\n"
"     4    URL user malformatted. The user-part of the URL  syntax\n"
"          was not correct.\n"
"\n"
"     5    Couldn't  resolve proxy. The given proxy host could not\n"
"          be resolved.\n"
"\n"
"     6    Couldn't resolve host. The given remote  host  was  not\n"
"          resolved.\n"
"\n"
"     7    Failed to connect to host.\n"
"\n"
"     8    FTP  weird  server  reply.  The  server  sent data curl\n"
"          couldn't parse.\n"
"\n"
"     9    FTP access denied. The server denied login.\n"
"\n"
"     10   FTP user/password incorrect. Either one  or  both  were\n"
"          not accepted by the server.\n"
"\n"
"     11   FTP  weird  PASS  reply.  Curl couldn't parse the reply\n"
"          sent to the PASS request.\n"
"\n"
"     12   FTP weird USER reply. Curl  couldn't  parse  the  reply\n"
"          sent to the USER request.\n"
"\n"
"     13   FTP  weird  PASV  reply,  Curl couldn't parse the reply\n"
"          sent to the PASV request.\n"
"\n"
"     14   FTP weird 227 formay. Curl couldn't parse the  227-line\n"
"          the server sent.\n"
"\n"
"     15   FTP can't get host. Couldn't resolve the host IP we got\n"
"          in the 227-line.\n"
"\n"
"     16   FTP can't reconnect. Couldn't connect to  the  host  we\n"
"          got in the 227-line.\n"
"     17   FTP  couldn't  set  binary.  Couldn't  change  transfer\n"
"          method to binary.\n"
"\n"
"     18   Partial file. Only a part of the file was transfered.\n"
"\n"
"     19   FTP couldn't RETR file. The RETR command failed.\n"
"\n"
"     20   FTP write error. The transfer was reported bad  by  the\n"
"          server.\n"
"\n"
"     21   FTP  quote  error.  A quote command returned error from\n"
"          the server.\n"
"\n"
"     22   HTTP not found. The requested page was not found.  This\n"
"          return code only appears if --fail is used.\n"
"\n"
"     23   Write  error.  Curl  couldn't  write  data  to  a local\n"
"          filesystem or similar.\n"
"\n"
"     24   Malformat user. User name badly specified.\n"
"\n"
"     25   FTP couldn't STOR file.  The  server  denied  the  STOR\n"
"          operation.\n"
"\n"
"     26   Read error. Various reading problems.\n"
"\n"
"     27   Out of memory. A memory allocation request failed.\n"
"\n"
"     28   Operation  timeout.  The  specified time-out period was\n"
"          reached according to the conditions.\n"
"\n"
"     29   FTP couldn't set ASCII. The server returned an  unknown\n"
"          reply.\n"
"\n"
"     30   FTP PORT failed. The PORT command failed.\n"
"\n"
"     31   FTP couldn't use REST. The REST command failed.\n"
"\n"
"     32   FTP  couldn't  use  SIZE.  The SIZE command failed. The\n"
"          command is an extension to the original  FTP  spec  RFC\n"
"          959.\n"
"\n"
"     33   HTTP range error. The range \"command\" didn't work.\n"
"\n"
"     34   HTTP   post  error.  Internal  post-request  generation\n"
"          error.\n"
"\n"
"     35   SSL connect error. The SSL handshaking failed.\n"
"\n"
"     36   FTP bad download resume. Couldn't continue  an  earlier\n"
"          aborted download.\n"
"     37   FILE  couldn't read file. Failed to open the file. Per­\n"
"          missions?\n"
"\n"
"     38   LDAP cannot bind. LDAP bind operation failed.\n"
"\n"
"     39   LDAP search failed.\n"
"\n"
"     40   Library not found. The LDAP library was not found.\n"
"\n"
"     41   Function not found. A required LDAP  function  was  not\n"
"          found.\n"
"\n"
"     XX   There  will  appear  more  error  codes  here in future\n"
"          releases. The existing ones are meant to never  change.\n"
"\n"
"BUGS\n"
"     If  you do find any (or have other suggestions), mail Daniel\n"
"     Stenberg <Daniel.Stenberg@haxx.nu>.\n"
"\n"
"AUTHORS / CONTRIBUTORS\n"
"      - Daniel Stenberg <Daniel.Stenberg@haxx.nu>\n"
"      - Rafael Sagula <sagula@inf.ufrgs.br>\n"
"      - Sampo Kellomaki <sampo@iki.fi>\n"
"      - Linas Vepstas <linas@linas.org>\n"
"      - Bjorn Reese <breese@mail1.stofanet.dk>\n"
"      - Johan Anderson <johan@homemail.com>\n"
"      - Kjell Ericson <Kjell.Ericson@haxx,nu>\n"
"      - Troy Engel <tengel@sonic.net>\n"
"      - Ryan Nelson <ryan@inch.com>\n"
"      - Bjorn Stenberg <Bjorn.Stenberg@haxx.nu>\n"
"      - Angus Mackay <amackay@gus.ml.org>\n"
"      - Eric Young <eay@cryptsoft.com>\n"
"      - Simon Dick <simond@totally.irrelevant.org>\n"
"      - Oren Tirosh <oren@monty.hishome.net>\n"
"      - Steven G. Johnson <stevenj@alum.mit.edu>\n"
"      - Gilbert Ramirez Jr. <gram@verdict.uthscsa.edu>\n"
"      - Andrés García <ornalux@redestb.es>\n"
"      - Douglas E. Wegscheid <wegscd@whirlpool.com>\n"
"      - Mark Butler <butlerm@xmission.com>\n"
"      - Eric Thelin <eric@generation-i.com>\n"
"      - Marc Boucher <marc@mbsi.ca>\n"
"      - Greg Onufer <Greg.Onufer@Eng.Sun.COM>\n"
"      - Doug Kaufman <dkaufman@rahul.net>\n"
"      - David Eriksson <david@2good.com>\n"
"      - Ralph Beckmann <rabe@uni-paderborn.de>\n"
"      - T. Yamada <tai@imasy.or.jp>\n"
"      - Lars J. Aas <larsa@sim.no>\n"
"      - Jörn Hartroth <Joern.Hartroth@telekom.de>\n"
"      - Matthew Clarke <clamat@van.maves.ca>\n"
"      - Linus Nielsen <Linus.Nielsen@haxx.nu>\n"
"      - Felix von Leitner <felix@convergence.de>\n"
"      - Dan Zitter <dzitter@zitter.net>\n"
"      - Jongki Suwandi <Jongki.Suwandi@eng.sun.com>\n"
"      - Chris Maltby <chris@aurema.com>\n"
"      - Ron Zapp <rzapper@yahoo.com>\n"
"      - Paul Marquis <pmarquis@iname.com>\n"
"      - Ellis Pritchard <ellis@citria.com>\n"
"      - Damien Adant <dams@usa.net>\n"
"      - Chris <cbayliss@csc.come>\n"
"      - Marco G. Salvagno <mgs@whiz.cjb.net>\n"
"\n"
"WWW\n"
"     http://curl.haxx.nu\n"
"\n"
"FTP\n"
"     ftp://ftp.sunet.se/pub/www/utilities/curl/\n"
"\n"
"SEE ALSO\n"
"     ftp(1), wget(1), snarf(1)\n"
"\n"
"LATEST VERSION\n"
"\n"
"  You always find news about what's going on as well as the latest versions\n"
"  from the curl web pages, located at:\n"
"\n"
"        http://curl.haxx.nu\n"
"\n"
"SIMPLE USAGE\n"
"\n"
"  Get the main page from netscape's web-server:\n"
"\n"
"        curl http://www.netscape.com/\n"
"\n"
"  Get the root README file from funet's ftp-server:\n"
"\n"
"        curl ftp://ftp.funet.fi/README\n"
"\n"
"  Get a gopher document from funet's gopher server:\n"
"\n"
"        curl gopher://gopher.funet.fi\n"
"\n"
"  Get a web page from a server using port 8000:\n"
"\n"
"        curl http://www.weirdserver.com:8000/\n"
"\n"
"  Get a list of the root directory of an FTP site:\n"
"\n"
"        curl ftp://ftp.fts.frontec.se/\n"
"\n"
"  Get the definition of curl from a dictionary:\n"
"\n"
"        curl dict://dict.org/m:curl\n"
"\n"
"DOWNLOAD TO A FILE\n"
"\n"
"  Get a web page and store in a local file:\n"
"\n"
"        curl -o thatpage.html http://www.netscape.com/\n"
"\n"
"  Get a web page and store in a local file, make the local file get the name\n"
"  of the remote document (if no file name part is specified in the URL, this\n"
"  will fail):\n"
"\n"
"        curl -O http://www.netscape.com/index.html\n"
"\n"
"USING PASSWORDS\n"
"\n"
" FTP\n"
"\n"
"   To ftp files using name+passwd, include them in the URL like:\n"
"\n"
"        curl ftp://name:passwd@machine.domain:port/full/path/to/file\n"
"\n"
"   or specify them with the -u flag like\n"
"\n"
"        curl -u name:passwd ftp://machine.domain:port/full/path/to/file\n"
"\n"
" HTTP\n"
"\n"
"   The HTTP URL doesn't support user and password in the URL string. Curl\n"
"   does support that anyway to provide a ftp-style interface and thus you can\n"
"   pick a file like:\n"
"\n"
"        curl http://name:passwd@machine.domain/full/path/to/file\n"
"\n"
"   or specify user and password separately like in\n"
"\n"
"        curl -u name:passwd http://machine.domain/full/path/to/file\n"
"\n"
"   NOTE! Since HTTP URLs don't support user and password, you can't use that\n"
"   style when using Curl via a proxy. You _must_ use the -u style fetch\n"
"   during such circumstances.\n"
"\n"
" HTTPS\n"
"\n"
"   Probably most commonly used with private certificates, as explained below.\n"
"\n"
" GOPHER\n"
"\n"
"   Curl features no password support for gopher.\n"
"\n"
"PROXY\n"
"\n"
" Get an ftp file using a proxy named my-proxy that uses port 888:\n"
"\n"
"        curl -x my-proxy:888 ftp://ftp.leachsite.com/README\n"
"\n"
" Get a file from a HTTP server that requires user and password, using the\n"
" same proxy as above:\n"
"\n"
"        curl -u user:passwd -x my-proxy:888 http://www.get.this/\n"
"\n"
" Some proxies require special authentication. Specify by using -U as above:\n"
"\n"
"        curl -U user:passwd -x my-proxy:888 http://www.get.this/\n"
"\n"
" See also the environment variables Curl support that offer further proxy\n"
" control.\n"
"\n"
"RANGES\n"
"\n"
"  With HTTP 1.1 byte-ranges were introduced. Using this, a client can request\n"
"  to get only one or more subparts of a specified document. Curl supports\n"
"  this with the -r flag.\n"
"\n"
"  Get the first 100 bytes of a document:\n"
"\n"
"        curl -r 0-99 http://www.get.this/\n"
"\n"
"  Get the last 500 bytes of a document:\n"
"\n"
"        curl -r -500 http://www.get.this/\n"
"\n"
"  Curl also supports simple ranges for FTP files as well. Then you can only\n"
"  specify start and stop position.\n"
"\n"
"  Get the first 100 bytes of a document using FTP:\n"
"\n"
"        curl -r 0-99 ftp://www.get.this/README  \n"
"\n"
"UPLOADING\n"
"\n"
" FTP\n"
"\n"
"  Upload all data on stdin to a specified ftp site:\n"
"\n"
"        curl -t ftp://ftp.upload.com/myfile\n"
"\n"
"  Upload data from a specified file, login with user and password:\n"
"\n"
"        curl -T uploadfile -u user:passwd ftp://ftp.upload.com/myfile\n"
"\n"
"  Upload a local file to the remote site, and use the local file name remote\n"
"  too:\n"
" \n"
"        curl -T uploadfile -u user:passwd ftp://ftp.upload.com/\n"
"\n"
"  Upload a local file to get appended to the remote file using ftp:\n"
"\n"
"        curl -T localfile -a ftp://ftp.upload.com/remotefile\n"
"\n"
"  NOTE: Curl does not support ftp upload through a proxy! The reason for this\n"
"  is simply that proxies are seldomly configured to allow this and that no\n"
"  author has supplied code that makes it possible!\n"
"\n"
" HTTP\n"
"\n"
"  Upload all data on stdin to a specified http site:\n"
"\n"
"        curl -t http://www.upload.com/myfile\n"
"\n"
"  Note that the http server must've been configured to accept PUT before this\n"
"  can be done successfully.\n"
"\n"
"  For other ways to do http data upload, see the POST section below.\n"
"\n"
"VERBOSE / DEBUG\n"
"\n"
"  If curl fails where it isn't supposed to, if the servers don't let you\n"
"  in, if you can't understand the responses: use the -v flag to get VERBOSE\n"
"  fetching. Curl will output lots of info and all data it sends and\n"
"  receives in order to let the user see all client-server interaction.\n"
"\n"
"        curl -v ftp://ftp.upload.com/\n"
"\n"
"DETAILED INFORMATION\n"
"\n"
"  Different protocols provide different ways of getting detailed information\n"
"  about specific files/documents. To get curl to show detailed information\n"
"  about a single file, you should use -I/--head option. It displays all\n"
"  available info on a single file for HTTP and FTP. The HTTP information is a\n"
"  lot more extensive.\n"
"\n"
"  For HTTP, you can get the header information (the same as -I would show)\n"
"  shown before the data by using -i/--include. Curl understands the\n"
"  -D/--dump-header option when getting files from both FTP and HTTP, and it\n"
"  will then store the headers in the specified file.\n"
"\n"
"  Store the HTTP headers in a separate file:\n"
"\n"
"        curl --dump-header headers.txt curl.haxx.nu\n"
"\n"
"  Note that headers stored in a separate file can be very useful at a later\n"
"  time if you want curl to use cookies sent by the server. More about that in\n"
"  the cookies section.\n"
"\n"
"POST (HTTP)\n"
"\n"
"  It's easy to post data using curl. This is done using the -d <data>\n"
"  option.  The post data must be urlencoded.\n"
"\n"
"  Post a simple \"name\" and \"phone\" guestbook.\n"
"\n"
"        curl -d \"name=Rafael%20Sagula&phone=3320780\" \\\n"
"                http://www.where.com/guest.cgi\n"
"\n"
"  How to post a form with curl, lesson #1:\n"
"\n"
"  Dig out all the <input> tags in the form that you want to fill in. (There's\n"
"  a perl program called formfind.pl on the curl site that helps with this).\n"
"\n"
"  If there's a \"normal\" post, you use -d to post. -d takes a full \"post\n"
"  string\", which is in the format\n"
"\n"
"        <variable1>=<data1>&<variable2>=<data2>&...\n"
"\n"
"  The 'variable' names are the names set with \"name=\" in the <input> tags, and\n"
"  the data is the contents you want to fill in for the inputs. The data *must*\n"
"  be properly URL encoded. That means you replace space with + and that you\n"
"  write weird letters with %XX where XX is the hexadecimal representation of\n"
"  the letter's ASCII code.\n"
"\n"
"  Example:\n"
"\n"
"  (page located at http://www.formpost.com/getthis/\n"
"\n"
"        <form action=\"post.cgi\" method=\"post\">\n"
"        <input name=user size=10>\n"
"        <input name=pass type=password size=10>\n"
"        <input name=id type=hidden value=\"blablabla\">\n"
"        <input name=ding value=\"submit\">\n"
"        </form>\n"
"\n"
"  We want to enter user 'foobar' with password '12345'.\n"
"\n"
"  To post to this, you enter a curl command line like:\n"
"\n"
"        curl -d \"user=foobar&pass=12345&id=blablabla&dig=submit\"  (continues)\n"
"          http://www.formpost.com/getthis/post.cgi\n"
"\n"
"\n"
"  While -d uses the application/x-www-form-urlencoded mime-type, generally\n"
"  understood by CGI's and similar, curl also supports the more capable\n"
"  multipart/form-data type. This latter type supports things like file upload.\n"
"\n"
"  -F accepts parameters like -F \"name=contents\". If you want the contents to\n"
"  be read from a file, use <@filename> as contents. When specifying a file,\n"
"  you can also specify which content type the file is, by appending\n"
"  ';type=<mime type>' to the file name. You can also post contents of several\n"
"  files in one field. So that the field name 'coolfiles' can be sent three\n"
"  files with different content types in a manner similar to:\n"
"\n"
"        curl -F \"coolfiles=@fil1.gif;type=image/gif,fil2.txt,fil3.html\" \\\n"
"        http://www.post.com/postit.cgi\n"
"\n"
"  If content-type is not specified, curl will try to guess from the extension\n"
"  (it only knows a few), or use the previously specified type (from an earlier\n"
"  file if several files are specified in a list) or finally using the default\n"
"  type 'text/plain'.\n"
"\n"
"  Emulate a fill-in form with -F. Let's say you fill in three fields in a\n"
"  form. One field is a file name which to post, one field is your name and one\n"
"  field is a file description. We want to post the file we have written named\n"
"  \"cooltext.txt\". To let curl do the posting of this data instead of your\n"
"  favourite browser, you have to check out the HTML of the form page to get to\n"
"  know the names of the input fields. In our example, the input field names are\n"
"  'file', 'yourname' and 'filedescription'.\n"
"\n"
"        curl -F \"file=@cooltext.txt\" -F \"yourname=Daniel\" \\\n"
"             -F \"filedescription=Cool text file with cool text inside\" \\\n"
"             http://www.post.com/postit.cgi\n"
"\n"
"  So, to send two files in one post you can do it in two ways:\n"
"\n"
"  1. Send multiple files in a single \"field\" with a single field name:\n"
" \n"
"        curl -F \"pictures=@dog.gif,cat.gif\" \n"
" \n"
"  2. Send two fields with two field names: \n"
"\n"
"        curl -F \"docpicture=@dog.gif\" -F \"catpicture=@cat.gif\" \n"
"\n"
"REFERER\n"
"\n"
"  A HTTP request has the option to include information about which address\n"
"  that referred to actual page, and curl allows the user to specify that\n"
"  referrer to get specified on the command line. It is especially useful to\n"
"  fool or trick stupid servers or CGI scripts that rely on that information\n"
"  being available or contain certain data.\n"
"\n"
"        curl -e www.coolsite.com http://www.showme.com/\n"
"\n"
"USER AGENT\n"
"\n"
"  A HTTP request has the option to include information about the browser\n"
"  that generated the request. Curl allows it to be specified on the command\n"
"  line. It is especially useful to fool or trick stupid servers or CGI\n"
"  scripts that only accept certain browsers.\n"
"\n"
"  Example:\n"
"\n"
"  curl -A 'Mozilla/3.0 (Win95; I)' http://www.nationsbank.com/\n"
"\n"
"  Other common strings:\n"
"    'Mozilla/3.0 (Win95; I)'     Netscape Version 3 for Windows 95\n"
"    'Mozilla/3.04 (Win95; U)'    Netscape Version 3 for Windows 95\n"
"    'Mozilla/2.02 (OS/2; U)'     Netscape Version 2 for OS/2\n"
"    'Mozilla/4.04 [en] (X11; U; AIX 4.2; Nav)'           NS for AIX\n"
"    'Mozilla/4.05 [en] (X11; U; Linux 2.0.32 i586)'      NS for Linux\n"
"\n"
"  Note that Internet Explorer tries hard to be compatible in every way:\n"
"    'Mozilla/4.0 (compatible; MSIE 4.01; Windows 95)'    MSIE for W95\n"
"\n"
"  Mozilla is not the only possible User-Agent name:\n"
"    'Konqueror/1.0'             KDE File Manager desktop client\n"
"    'Lynx/2.7.1 libwww-FM/2.14' Lynx command line browser\n"
"\n"
"COOKIES\n"
"\n"
"  Cookies are generally used by web servers to keep state information at the\n"
"  client's side. The server sets cookies by sending a response line in the\n"
"  headers that looks like 'Set-Cookie: <data>' where the data part then\n"
"  typically contains a set of NAME=VALUE pairs (separated by semicolons ';'\n"
"  like \"NAME1=VALUE1; NAME2=VALUE2;\"). The server can also specify for what\n"
"  path the \"cookie\" should be used for (by specifying \"path=value\"), when the\n"
"  cookie should expire (\"expire=DATE\"), for what domain to use it\n"
"  (\"domain=NAME\") and if it should be used on secure connections only\n"
"  (\"secure\").\n"
"\n"
"  If you've received a page from a server that contains a header like:\n"
"        Set-Cookie: sessionid=boo123; path=\"/foo\";\n"
"\n"
"  it means the server wants that first pair passed on when we get anything in\n"
"  a path beginning with \"/foo\".\n"
"\n"
"  Example, get a page that wants my name passed in a cookie:\n"
"\n"
"        curl -b \"name=Daniel\" www.sillypage.com\n"
"\n"
"  Curl also has the ability to use previously received cookies in following\n"
"  sessions. If you get cookies from a server and store them in a file in a\n"
"  manner similar to:\n"
"\n"
"        curl --dump-header headers www.example.com\n"
"\n"
"  ... you can then in a second connect to that (or another) site, use the\n"
"  cookies from the 'headers' file like:\n"
"\n"
"        curl -b headers www.example.com\n"
"\n"
"  Note that by specifying -b you enable the \"cookie awareness\" and with -L\n"
"  you can make curl follow a location: (which often is used in combination\n"
"  with cookies). So that if a site sends cookies and a location, you can\n"
"  use a non-existing file to trig the cookie awareness like:\n"
"\n"
"        curl -L -b empty-file www.example.com\n"
"\n"
"  The file to read cookies from must be formatted using plain HTTP headers OR\n"
"  as netscape's cookie file. Curl will determine what kind it is based on the\n"
"  file contents.\n"
"\n"
"PROGRESS METER\n"
"\n"
"  The progress meter exists to show a user that something actually is\n"
"  happening. The different fields in the output have the following meaning:\n"
"\n"
"  % Total    % Received % Xferd  Average Speed          Time             Curr.\n"
"                                 Dload  Upload Total    Current  Left    Speed\n"
"  0  151M    0 38608    0     0   9406      0  4:41:43  0:00:04  4:41:39  9287\n"
"\n"
"  From left-to-right:\n"
"   %             - percentage completed of the whole transfer\n"
"   Total         - total size of the whole expected transfer\n"
"   %             - percentage completed of the download\n"
"   Received      - currently downloaded amount of bytes\n"
"   %             - percentage completed of the upload\n"
"   Xferd         - currently uploaded amount of bytes\n"
"   Average Speed\n"
"   Dload         - the average transfer speed of the download\n"
"   Average Speed\n"
"   Upload        - the average transfer speed of the upload\n"
"   Time Total    - expected time to complete the operation\n"
"   Time Current  - time passed since the invoke\n"
"   Time Left     - expected time left to completetion\n"
"   Curr.Speed    - the average transfer speed the last 5 seconds (the first\n"
"                   5 seconds of a transfer is based on less time of course.)\n"
"\n"
"  The -# option will display a totally different progress bar that doesn't\n"
"  need much explanation!\n"
"\n"
"SPEED LIMIT\n"
"\n"
"  Curl offers the user to set conditions regarding transfer speed that must\n"
"  be met to let the transfer keep going. By using the switch -y and -Y you\n"
"  can make curl abort transfers if the transfer speed doesn't exceed your\n"
"  given lowest limit for a specified time.\n"
"\n"
"  To let curl abandon downloading this page if its slower than 3000 bytes per\n"
"  second for 1 minute, run:\n"
"\n"
"        curl -y 3000 -Y 60 www.far-away-site.com\n"
"\n"
"  This can very well be used in combination with the overall time limit, so\n"
"  that the above operatioin must be completed in whole within 30 minutes:\n"
"\n"
"        curl -m 1800 -y 3000 -Y 60 www.far-away-site.com\n"
"\n"
"CONFIG FILE\n"
"\n"
"  Curl automatically tries to read the .curlrc file (or _curlrc file on win32\n"
"  systems) from the user's home dir on startup. The config file should be\n"
"  made up with normal command line switches. Comments can be used within the\n"
"  file. If the first letter on a line is a '#'-letter the rest of the line\n"
"  is treated as a comment.\n"
"\n"
"  Example, set default time out and proxy in a config file:\n"
"\n"
"        # We want a 30 minute timeout:\n"
"        -m 1800\n"
"        # ... and we use a proxy for all accesses:\n"
"        -x proxy.our.domain.com:8080\n"
"\n"
"  White spaces ARE significant at the end of lines, but all white spaces\n"
"  leading up to the first characters of each line are ignored.\n"
"\n"
"  Prevent curl from reading the default file by using -q as the first command\n"
"  line parameter, like:\n"
"\n"
"        curl -q www.thatsite.com\n"
"\n"
"  Force curl to get and display a local help page in case it is invoked\n"
"  without URL by making a config file similar to:\n"
"\n"
"        # default url to get\n"
"        http://help.with.curl.com/curlhelp.html\n"
"\n"
"  You can specify another config file to be read by using the -K/--config\n"
"  flag. If you set config file name to \"-\" it'll read the config from stdin,\n"
"  which can be handy if you want to hide options from being visible in process\n"
"  tables etc:\n"
"\n"
"        echo \"-u user:passwd\" | curl -K - http://that.secret.site.com\n"
"\n"
"EXTRA HEADERS\n"
"\n"
"  When using curl in your own very special programs, you may end up needing\n"
"  to pass on your own custom headers when getting a web page. You can do\n"
"  this by using the -H flag.\n"
"\n"
"  Example, send the header \"X-you-and-me: yes\" to the server when getting a\n"
"  page:\n"
"\n"
"        curl -H \"X-you-and-me: yes\" www.love.com\n"
"\n"
"  This can also be useful in case you want curl to send a different text in\n"
"  a header than it normally does. The -H header you specify then replaces the\n"
"  header curl would normally send.\n"
"\n"
"FTP and PATH NAMES\n"
"\n"
"  Do note that when getting files with the ftp:// URL, the given path is\n"
"  relative the directory you enter. To get the file 'README' from your home\n"
"  directory at your ftp site, do:\n"
"\n"
"        curl ftp://user:passwd@my.site.com/README\n"
"\n"
"  But if you want the README file from the root directory of that very same\n"
"  site, you need to specify the absolute file name:\n"
"\n"
"        curl ftp://user:passwd@my.site.com//README\n"
"\n"
"  (I.e with an extra slash in front of the file name.)\n"
"\n"
"FTP and firewalls\n"
"\n"
"  The FTP protocol requires one of the involved parties to open a second\n"
"  connction as soon as data is about to get transfered. There are two ways to\n"
"  do this.\n"
"\n"
"  The default way for curl is to issue the PASV command which causes the\n"
"  server to open another port and await another connection performed by the\n"
"  client. This is good if the client is behind a firewall that don't allow\n"
"  incoming connections.\n"
"\n"
"        curl ftp.download.com\n"
"\n"
"  If the server for example, is behind a firewall that don't allow connections\n"
"  on other ports than 21 (or if it just doesn't support the PASV command), the\n"
"  other way to do it is to use the PORT command and instruct the server to\n"
"  connect to the client on the given (as parameters to the PORT command) IP\n"
"  number and port.\n"
"\n"
"  The -P flag to curl allows for different options. Your machine may have\n"
"  several IP-addresses and/or network interfaces and curl allows you to select\n"
"  which of them to use. Default address can also be used:\n"
"\n"
"        curl -P - ftp.download.com\n"
"\n"
"  Download with PORT but use the IP address of our 'le0' interface:\n"
"\n"
"        curl -P le0 ftp.download.com\n"
"\n"
"  Download with PORT but use 192.168.0.10 as our IP address to use:\n"
"\n"
"        curl -P 192.168.0.10 ftp.download.com\n"
"\n"
"HTTPS\n"
"\n"
"  Secure HTTP requires SSL libraries to be installed and used when curl is\n"
"  built. If that is done, curl is capable of retrieving and posting documents\n"
"  using the HTTPS procotol.\n"
"\n"
"  Example:\n"
"\n"
"        curl https://www.secure-site.com\n"
"\n"
"  Curl is also capable of using your personal certificates to get/post files\n"
"  from sites that require valid certificates. The only drawback is that the\n"
"  certificate needs to be in PEM-format. PEM is a standard and open format to\n"
"  store certificates with, but it is not used by the most commonly used\n"
"  browsers (Netscape and MSEI both use the so called PKCS#12 format). If you\n"
"  want curl to use the certificates you use with your (favourite) browser, you\n"
"  may need to download/compile a converter that can convert your browser's\n"
"  formatted certificates to PEM formatted ones. This kind of converter is\n"
"  included in recent versions of OpenSSL, and for older versions Dr Stephen\n"
"  N. Henson has written a patch for SSLeay that adds this functionality. You\n"
"  can get his patch (that requires an SSLeay installation) from his site at:\n"
"  http://www.drh-consultancy.demon.co.uk/\n"
"\n"
"  Example on how to automatically retrieve a document using a certificate with\n"
"  a personal password:\n"
"\n"
"        curl -E /path/to/cert.pem:password https://secure.site.com/\n"
"\n"
"  If you neglect to specify the password on the command line, you will be\n"
"  prompted for the correct password before any data can be received.\n"
"\n"
"  Many older SSL-servers have problems with SSLv3 or TLS, that newer versions\n"
"  of OpenSSL etc is using, therefore it is sometimes useful to specify what\n"
"  SSL-version curl should use. Use -3 or -2 to specify that exact SSL version\n"
"  to use:\n"
"\n"
"        curl -2 https://secure.site.com/\n"
"\n"
"  Otherwise, curl will first attempt to use v3 and then v2.\n"
"\n"
"RESUMING FILE TRANSFERS\n"
"\n"
" To continue a file transfer where it was previously aborted, curl supports\n"
" resume on http(s) downloads as well as ftp uploads and downloads.\n"
"\n"
" Continue downloading a document:\n"
"\n"
"        curl -c -o file ftp://ftp.server.com/path/file\n"
"\n"
" Continue uploading a document(*1):\n"
"\n"
"        curl -c -T file ftp://ftp.server.com/path/file\n"
"\n"
" Continue downloading a document from a web server(*2):\n"
"\n"
"        curl -c -o file http://www.server.com/\n"
"\n"
" (*1) = This requires that the ftp server supports the non-standard command\n"
"        SIZE. If it doesn't, curl will say so.\n"
"\n"
" (*2) = This requires that the wb server supports at least HTTP/1.1. If it\n"
"        doesn't, curl will say so.\n"
"\n"
"TIME CONDITIONS\n"
"\n"
" HTTP allows a client to specify a time condition for the document it\n"
" requests. It is If-Modified-Since or If-Unmodified-Since. Curl allow you to\n"
" specify them with the -z/--time-cond flag.\n"
"\n"
" For example, you can easily make a download that only gets performed if the\n"
" remote file is newer than a local copy. It would be made like:\n"
"\n"
"        curl -z local.html http://remote.server.com/remote.html\n"
"\n"
" Or you can download a file only if the local file is newer than the remote\n"
" one. Do this by prepending the date string with a '-', as in:\n"
"\n"
"        curl -z -local.html http://remote.server.com/remote.html\n"
"\n"
" You can specify a \"free text\" date as condition. Tell curl to only download\n"
" the file if it was updated since yesterday:\n"
"\n"
"        curl -z yesterday http://remote.server.com/remote.html\n"
"\n"
" Curl will then accept a wide range of date formats. You always make the date\n"
" check the other way around by prepending it with a dash '-'.\n"
"\n"
"DICT\n"
"\n"
"  For fun try\n"
"\n"
"        curl dict://dict.org/m:curl\n"
"        curl dict://dict.org/d:heisenbug:jargon\n"
"        curl dict://dict.org/d:daniel:web1913\n"
"\n"
"  Aliases for 'm' are 'match' and 'find', and aliases for 'd' are 'define'\n"
"  and 'lookup'. For example,\n"
"\n"
"        curl dict://dict.org/find:curl\n"
"\n"
"  Commands that break the URL description of the RFC (but not the DICT\n"
"  protocol) are\n"
"\n"
"        curl dict://dict.org/show:db\n"
"        curl dict://dict.org/show:strat\n"
"\n"
"  Authentication is still missing (but this is not required by the RFC)\n"
"\n"
"LDAP\n"
"\n"
"  If you have installed the OpenLDAP library, curl can take advantage of it\n"
"  and offer ldap:// support.\n"
"\n"
"  LDAP is a complex thing and writing an LDAP query is not an easy task. I do\n"
"  advice you to dig up the syntax description for that elsewhere, RFC 1959 if\n"
"  no other place is better.\n"
"\n"
"  To show you an example, this is now I can get all people from my local LDAP\n"
"  server that has a certain sub-domain in their email address:\n"
"\n"
"        curl -B \"ldap://ldap.frontec.se/o=frontec??sub?mail=*sth.frontec.se\"\n"
"\n"
"  If I want the same info in HTML format, I can get it by not using the -B\n"
"  (enforce ASCII) flag.\n"
"\n"
"ENVIRONMENT VARIABLES\n"
"\n"
"  Curl reads and understands the following environment variables:\n"
"\n"
"        HTTP_PROXY, HTTPS_PROXY, FTP_PROXY, GOPHER_PROXY\n"
"\n"
"  They should be set for protocol-specific proxies. General proxy should be\n"
"  set with\n"
"        \n"
"        ALL_PROXY\n"
"\n"
"  A comma-separated list of host names that shouldn't go through any proxy is\n"
"  set in (only an asterisk, '*' matches all hosts)\n"
"\n"
"        NO_PROXY\n"
"\n"
"  If a tail substring of the domain-path for a host matches one of these\n"
"  strings, transactions with that node will not be proxied.\n"
"\n"
"\n"
"  The usage of the -x/--proxy flag overrides the environment variables.\n"
"\n"
"NETRC\n"
"\n"
"  Unix introduced the .netrc concept a long time ago. It is a way for a user\n"
"  to specify name and password for commonly visited ftp sites in a file so\n"
"  that you don't have to type them in each time you visit those sites. You\n"
"  realize this is a big security risk if someone else gets hold of your\n"
"  passwords, so therefor most unix programs won't read this file unless it is\n"
"  only readable by yourself (curl doesn't care though).\n"
"\n"
"  Curl supports .netrc files if told so (using the -n/--netrc option). This is\n"
"  not restricted to only ftp, but curl can use it for all protocols where\n"
"  authentication is used.\n"
"\n"
"  A very simple .netrc file could look something like:\n"
"\n"
"        machine curl.haxx.nu login iamdaniel password mysecret\n"
"\n"
"CUSTOM OUTPUT\n"
"\n"
"  To better allow script programmers to get to know about the progress of\n"
"  curl, the -w/--write-out option was introduced. Using this, you can specify\n"
"  what information from the previous transfer you want to extract.\n"
"\n"
"  To display the amount of bytes downloaded together with some text and an\n"
"  ending newline:\n"
"\n"
"        curl -w 'We downloaded %{size_download} bytes\\n' www.download.com\n"
"\n"
"MAILING LIST\n"
"\n"
"  We have an open mailing list to discuss curl, its development and things\n"
"  relevant to this.\n"
"\n"
"  To subscribe, mail curl-request@contactor.se with \"subscribe <your email\n"
"  address>\" in the body.\n"
"\n"
"  To post to the list, mail curl@contactor.se.\n"
"\n"
"  To unsubcribe, mail curl-request@contactor.se with \"unsubscribe <your\n"
"  subscribed email address>\" in the body.\n"
"\n"
 ) ;
}