2 Now that gnulib supports *printf("%a"), import one of the
3 *printf-posix modules so that printf(1) will support %a even on
4 platforms where the native *printf(3) is deficient.
5 Suggestion form Eric Blake.
7 strip: add an option to specify the program used to strip binaries.
8 suggestion from Karl Berry
11 Address this comment: FIXME: mv's behavior in this case is system-dependent
12 Better still: fix the code so it's *not* system-dependent.
14 ls: add --format=FORMAT option that controls how each line is printed.
16 cp --no-preserve=X should not attempt to preserve attribute X
17 reported by Andreas Schwab
19 copy.c: Address the FIXME-maybe comment in copy_internal.
20 And once that's done, add an exclusion so that `cp --link'
21 no longer incurs the overhead of saving src. dev/ino and dest. filename
24 See if we can be consistent about where --verbose sends its output:
25 These all send --verbose output to stdout:
26 head, tail, rm, cp, mv, ln, chmod, chown, chgrp, install, ln
27 These send it to stderr:
31 Write an autoconf test to work around build failure in HPUX's 64-bit mode.
32 See notes in README -- and remove them once there's a work-around.
34 Integrate use of sendfile, suggested here:
35 http://mail.gnu.org/archive/html/bug-fileutils/2003-03/msg00030.html
36 I don't plan to do that, since a few tests demonstrate no significant benefit.
38 Should printf '\0123' print "\n3"?
39 per report from TAKAI Kousuke on Mar 27
40 http://mail.gnu.org/archive/html/bug-coreutils/2003-03/index.html
42 printf: consider adapting builtins/printf.def from bash
44 df: add `--total' option, suggested here http://bugs.debian.org/186007
46 seq: give better diagnostics for invalid formats:
47 e.g. no or too many % directives
48 seq: consider allowing format string to contain no %-directives
50 resolve RH report on cp -a forwarded by Tim Waugh
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 tr: support nontrivial equivalence classes, e.g. [=e=] with LC_COLLATE=fr_FR
59 lib/strftime.c: Since %N is the only format that we need but that
60 glibc's strftime doesn't support, consider using a wrapper that
61 would expand /%(-_)?\d*N/ to the desired string and then pass the
62 resulting string to glibc's strftime.
64 sort: Compress temporary files when doing large external sort/merges.
65 This improves performance when you can compress/uncompress faster than
66 you can read/write, which is common in these days of fast CPUs.
67 suggestion from Charles Randall on 2001-08-10
69 unexpand: [http://www.opengroup.org/onlinepubs/007908799/xcu/unexpand.html]
70 printf 'x\t \t y\n'|unexpand -t 8,9 should print its input, unmodified.
71 printf 'x\t \t y\n'|unexpand -t 5,8 should print "x\ty\n"
73 Let GNU su use the `wheel' group if appropriate.
74 (there are a couple patches, already)
76 sort: Investigate better sorting algorithms; see Knuth vol. 3.
78 We tried list merge sort, but it was about 50% slower than the
79 recursive algorithm currently used by sortlines, and it used more
80 comparisons. We're not sure why this was, as the theory suggests it
81 should do fewer comparisons, so perhaps this should be revisited.
82 List merge sort was implemented in the style of Knuth algorithm
83 5.2.4L, with the optimization suggested by exercise 5.2.4-22. The
84 test case was 140,213,394 bytes, 426,4424 lines, text taken from the
85 GCC 3.3 distribution, sort.c compiled with GCC 2.95.4 and running on
86 Debian 3.0r1 GNU/Linux, 2.4GHz Pentium 4, single pass with no
87 temporary files and plenty of RAM.
89 Since comparisons seem to be the bottleneck, perhaps the best
90 algorithm to try next should be merge insertion. See Knuth section
91 5.3.1, who credits Lester Ford, Jr. and Selmer Johnson, American
92 Mathematical Monthly 66 (1959), 387-389.
94 cp --recursive: perform dir traversals in source and dest hierarchy rather
95 than forming full file names. The latter (current) approach fails
96 unnecessarily when the names become very long.
98 Remove suspicious uses of alloca (ones that may allocate more than
101 Adapt these contribution guidelines for coreutils:
102 http://sources.redhat.com/automake/contribute.html
105 Changes expected to go in, someday.
106 ======================================
108 dd patch from Olivier Delhomme
110 Andreas Gruenbacher's xattr changes
112 Apply Bruno Haible's hostname changes
114 test/mv/*: clean up $other_partition_tmpdir in all cases
116 ls: when both -l and --dereference-command-line-symlink-to-dir are
117 specified, consider whether to let the latter select whether to
118 dereference command line symlinks to directories. Since -l has
119 an implicit --NO-dereference-command-line-symlink-to-dir meaning.
120 Pointed out by Karl Berry.
122 A more efficient version of factor, and possibly one that
123 accepts inputs of size 2^64 and larger.
125 dd: consider adding an option to suppress `bytes/block read/written'
126 output to stderr. Suggested here:
127 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=165045
129 Pending copyright papers:
130 ------------------------
131 ls --color: Ed Avis' patch to suppress escape sequences for
132 non-highlighted files
134 getpwnam from Bruce Korb
136 pb (progress bar) from Miika Pekkarinen
138 ------------------------------
140 Have euidaccess.m4 check for eaccess as well as euidaccess
141 If found, then do `#define euidaccess eaccess'.
143 Remove long-deprecated options. Search case-insensitive for
144 `deprecated' and `remove in '. Automate this.
146 Add a distcheck-time test to ensure that every distributed
147 file is either read-only(indicating generated) or is
148 version-controlled and up to date.
150 Implement Ulrich Drepper's suggestion to use getgrouplist rather
151 than getugroups. This affects only `id', but makes a big difference
152 on systems with many users and/or groups, and makes id usable once
153 again on systems where access restrictions make getugroups fail.
154 But first we'll need a run-test (either in an autoconf macro or at
155 run time) to avoid the segfault bug in libc-2.3.2's getgrouplist.
156 In that case, we'd revert to using a new (to-be-written) getgrouplist
157 module that does most of what `id' already does. Or just avoid the
158 buggy use of getgrouplist by never passing it a buffer of length zero.
159 See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200327
161 remove `%s' notation:
162 grep -E "\`%.{,4}s'" src/*.c
164 remove or adjust chown's --changes option, since it
165 can't always do what it currently says it does.
167 Adapt tools like wc, tr, fmt, etc. (most of the textutils) to be
168 multibyte aware. The problem is that I want to avoid duplicating
169 significant blocks of logic, yet I also want to incur only minimal
170 (preferably `no') cost when operating in single-byte mode.
172 Remove all uses of the `register' keyword
174 pr's use of nstrftime can make it malloc a very large (up to SIZE_MAX) buffer
176 ls.c: use gettime rather than clock_gettime, gettimeofday, time
180 Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
183 This program is free software; you can redistribute it and/or modify
184 it under the terms of the GNU General Public License as published by
185 the Free Software Foundation; either version 2, or (at your option)
188 This program is distributed in the hope that it will be useful,
189 but WITHOUT ANY WARRANTY; without even the implied warranty of
190 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
191 GNU General Public License for more details.
193 You should have received a copy of the GNU General Public License
194 along with this program; if not, write to the Free Software Foundation,
195 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.