1 add unit tests for lib/*.c
3 strip: add an option to specify the program used to strip binaries.
4 suggestion from Karl Berry
7 Address this comment: FIXME: mv's behavior in this case is system-dependent
8 Better still: fix the code so it's *not* system-dependent.
10 ls: add --format=FORMAT option that controls how each line is printed.
12 cp --no-preserve=X should not attempt to preserve attribute X
13 reported by Andreas Schwab
15 copy.c: Address the FIXME-maybe comment in copy_internal.
16 And once that's done, add an exclusion so that `cp --link'
17 no longer incurs the overhead of saving src. dev/ino and dest. filename
20 See if we can be consistent about where --verbose sends its output:
21 These all send --verbose output to stdout:
22 head, tail, rm, cp, mv, ln, chmod, chown, chgrp, install, ln
23 These send it to stderr:
27 Write an autoconf test to work around build failure in HPUX's 64-bit mode.
28 See notes in README -- and remove them once there's a work-around.
30 Integrate use of sendfile, suggested here:
31 http://mail.gnu.org/archive/html/bug-fileutils/2003-03/msg00030.html
32 I don't plan to do that, since a few tests demonstrate no significant benefit.
34 Should printf '\0123' print "\n3"?
35 per report from TAKAI Kousuke on Mar 27
36 http://mail.gnu.org/archive/html/bug-coreutils/2003-03/index.html
38 printf: consider adapting builtins/printf.def from bash
40 df: add `--total' option, suggested here http://bugs.debian.org/186007
42 seq: give better diagnostics for invalid formats:
43 e.g. no or too many % directives
44 seq: consider allowing format string to contain no %-directives
46 m4: rename all macros that start with AC_ to start with another prefix
48 resolve RH report on cp -a forwarded by Tim Waugh
50 provide an ls option to do something like `--sort directory'
52 tail: don't use xlseek; it *exits*.
53 Instead, maybe use a macro and return nonzero.
55 add mktemp? Suggested by Nelson Beebe
57 df: alignment problem of `Used' heading with e.g., -mP
58 reported by Karl Berry
60 tr: support nontrivial equivalence classes, e.g. [=e=] with LC_COLLATE=fr_FR
62 lib/strftime.c: Since %N is the only format that we need but that
63 glibc's strftime doesn't support, consider using a wrapper that
64 would expand /%(-_)?\d*N/ to the desired string and then pass the
65 resulting string to glibc's strftime.
67 sort: Compress temporary files when doing large external sort/merges.
68 This improves performance when you can compress/uncompress faster than
69 you can read/write, which is common in these days of fast CPUs.
70 suggestion from Charles Randall on 2001-08-10
72 sort: Add an ordering option -R that causes 'sort' to sort according
73 to a random permutation of the correct sort order. Also, add an
74 option --random-seed=SEED that causes 'sort' to use an arbitrary
75 string SEED to select which permutations to use, in a deterministic
76 manner: that is, if you sort a permutation of the same input file
77 with the same --random-seed=SEED option twice, you'll get the same
78 output. The default SEED is chosen at random, and contains enough
79 information to ensure that the output permutation is random.
80 suggestion from Feth AREZKI, Stephan Kasal, and Paul Eggert on 2003-07-17
82 unexpand: [http://www.opengroup.org/onlinepubs/007908799/xcu/unexpand.html]
83 printf 'x\t \t y\n'|unexpand -t 8,9 should print its input, unmodified.
84 printf 'x\t \t y\n'|unexpand -t 5,8 should print "x\ty\n"
86 Let GNU su use the `wheel' group if appropriate.
87 (there are a couple patches, already)
89 sort: Investigate better sorting algorithms; see Knuth vol. 3.
91 We tried list merge sort, but it was about 50% slower than the
92 recursive algorithm currently used by sortlines, and it used more
93 comparisons. We're not sure why this was, as the theory suggests it
94 should do fewer comparisons, so perhaps this should be revisited.
95 List merge sort was implemented in the style of Knuth algorithm
96 5.2.4L, with the optimization suggested by exercise 5.2.4-22. The
97 test case was 140,213,394 bytes, 426,4424 lines, text taken from the
98 GCC 3.3 distribution, sort.c compiled with GCC 2.95.4 and running on
99 Debian 3.0r1 GNU/Linux, 2.4GHz Pentium 4, single pass with no
100 temporary files and plenty of RAM.
102 Since comparisons seem to be the bottleneck, perhaps the best
103 algorithm to try next should be merge insertion. See Knuth section
104 5.3.1, who credits Lester Ford, Jr. and Selmer Johnson, American
105 Mathematical Monthly 66 (1959), 387-389.
107 cp --recursive: perform dir traversals in source and dest hierarchy rather
108 than forming full file names. The latter (current) approach fails
109 unnecessarily when the names become very long.
111 Remove suspicious uses of alloca (ones that may allocate more than
114 Adapt these contribution guidelines for coreutils:
115 http://sources.redhat.com/automake/contribute.html
118 Changes expected to go in, someday.
119 ======================================
121 wc: add an option, --files0-from [as for du] to make it read NUL-delimited
122 file name arguments from a file.
124 dd patch from Olivier Delhomme
126 Andreas Gruenbacher's xattr changes
128 Apply Bruno Haible's hostname changes
130 test/mv/*: clean up $other_partition_tmpdir in all cases
132 ls: when both -l and --dereference-command-line-symlink-to-dir are
133 specified, consider whether to let the latter select whether to
134 dereference command line symlinks to directories. Since -l has
135 an implicit --NO-dereference-command-line-symlink-to-dir meaning.
136 Pointed out by Karl Berry.
138 A more efficient version of factor, and possibly one that
139 accepts inputs of size 2^64 and larger.
141 dd: consider adding an option to suppress `bytes/block read/written'
142 output to stderr. Suggested here:
143 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=165045
145 Pending copyright papers:
146 ------------------------
147 ls --color: Ed Avis' patch to suppress escape sequences for
148 non-highlighted files
150 getpwnam from Bruce Korb
152 pb (progress bar) from Miika Pekkarinen
154 ------------------------------
156 Have euidaccess.m4 check for eaccess as well as euidaccess
157 If found, then do `#define euidaccess eaccess'.
159 Remove long-deprecated options. Search case-insensitive for
160 `deprecated' and `remove in '.
162 Add a distcheck-time test to ensure that every distributed
163 file is either read-only(indicating generated) or is
164 version-controlled and up to date.
166 Implement Ulrich Drepper's suggestion to use getgrouplist rather
167 than getugroups. This affects only `id', but makes a big difference
168 on systems with many users and/or groups, and makes id usable once
169 again on systems where access restrictions make getugroups fail.
170 But first we'll need a run-test (either in an autoconf macro or at
171 run time) to avoid the segfault bug in libc-2.3.2's getgrouplist.
172 In that case, we'd revert to using a new (to-be-written) getgrouplist
173 module that does most of what `id' already does.
175 remove `%s' notation:
176 grep -E "\`%.{,4}s'" src/*.c
178 remove or adjust chown's --changes option, since it
179 can't always do what it currently says it does.
181 Adapt tools like wc, tr, fmt, etc. (most of the textutils) to be
182 multibyte aware. The problem is that I want to avoid duplicating
183 significant blocks of logic, yet I also want to incur only minimal
184 (preferably `no') cost when operating in single-byte mode.
186 Remove all uses of the `register' keyword