examples/misc/aliasconv.sh

   1 #! /bin/bash
   2 #
   3 # aliasconv.sh - convert csh aliases to bash aliases and functions
   4 #
   5 # usage: aliasconv.sh
   6 #
   7 # Chet Ramey
   8 # chet@po.cwru.edu
   9 #
  10 trap 'rm -f /tmp/cb$$.?' 0 1 2 3 6 15
  11
  12 T='     '
  13
  14 cat << \EOF >/tmp/cb$$.1
  15 mkalias ()
  16 {
  17         if [ "x$2" = "x" ]; then
  18                 echo alias ${1}="''"
  19         elif echo "$2" | egrep -s '(\!|#)' >/dev/null 2>&1; then
  20                 comm=`echo $2 | sed  's/\\!\*/"$\@"/g
  21                                       s/\\!:\([1-9]\)/"$\1"/g
  22                                       s/#/\#/g'`
  23                 echo $1 \(\) "{" command "$comm"  "; }"
  24         else
  25                 echo alias ${1}=\'`echo "${2}" | sed "s:':'\\\\\\\\'':"`\'
  26         fi
  27 }
  28 EOF
  29
  30 # the first thing we want to do is to protect single quotes in the alias,
  31 # since they whole thing is going to be surrounded by single quotes when
  32 # passed to mkalias
  33
  34 sed -e "s:':\\'\\\'\\':" -e "s/^\([a-zA-Z0-9_-]*\)$T\(.*\)$/mkalias \1 '\2'/" >>/tmp/cb$$.1
  35
  36 sh /tmp/cb$$.1 | sed -e 's/\$cwd/\$PWD/g' \
  37                      -e 's/\$term/\$TERM/g' \
  38                      -e 's/\$home/\$HOME/g' \
  39                      -e 's/\$user/\$USER/g' \
  40                      -e 's/\$prompt/\$PS1/g'
  41
  42 exit 0