1 comm: add an option, --output-delimiter=STR
2 Files to change: src/comm.c, ChangeLog, NEWS, doc/coreutils.texi,
3 Add a new file, tests/misc/comm (use another file in that directory as
4 a template), to exercise the new option. Suggestion from Dan Jacobson.
7 Now that gnulib supports *printf("%a"), import one of the
8 *printf-posix modules so that printf(1) will support %a even on
9 platforms where the native *printf(3) is deficient.
10 Suggestion from Eric Blake.
12 renice: POSIX utility, needs implementing.
13 suggestion from Karl Berry (among others).
15 install: add an option to specify the program used to strip binaries.
16 suggestion from Karl Berry
19 Address this comment: FIXME: mv's behavior in this case is system-dependent
20 Better still: fix the code so it's *not* system-dependent.
22 ls: add --format=FORMAT option that controls how each line is printed.
24 cp --no-preserve=X should not attempt to preserve attribute X
25 reported by Andreas Schwab
27 copy.c: Address the FIXME-maybe comment in copy_internal.
28 And once that's done, add an exclusion so that `cp --link'
29 no longer incurs the overhead of saving src. dev/ino and dest. filename
32 See if we can be consistent about where --verbose sends its output:
33 These all send --verbose output to stdout:
34 head, tail, rm, cp, mv, ln, chmod, chown, chgrp, install, ln
35 These send it to stderr:
39 Write an autoconf test to work around build failure in HPUX's 64-bit mode.
40 See notes in README -- and remove them once there's a work-around.
42 Integrate use of sendfile, suggested here:
43 http://mail.gnu.org/archive/html/bug-fileutils/2003-03/msg00030.html
44 I don't plan to do that, since a few tests demonstrate no significant benefit.
46 Should printf '\0123' print "\n3"?
47 per report from TAKAI Kousuke on Mar 27
48 http://mail.gnu.org/archive/html/bug-coreutils/2003-03/index.html
50 printf: consider adapting builtins/printf.def from bash
52 df: add `--total' option, suggested here http://bugs.debian.org/186007
54 seq: give better diagnostics for invalid formats:
55 e.g. no or too many % directives
56 seq: consider allowing format string to contain no %-directives
58 tail: don't use xlseek; it *exits*.
59 Instead, maybe use a macro and return nonzero.
61 add mktemp? Suggested by Nelson Beebe
63 tr: support nontrivial equivalence classes, e.g. [=e=] with LC_COLLATE=fr_FR
65 lib/strftime.c: Since %N is the only format that we need but that
66 glibc's strftime doesn't support, consider using a wrapper that
67 would expand /%(-_)?\d*N/ to the desired string and then pass the
68 resulting string to glibc's strftime.
70 unexpand: [http://www.opengroup.org/onlinepubs/007908799/xcu/unexpand.html]
71 printf 'x\t \t y\n'|unexpand -t 8,9 should print its input, unmodified.
72 printf 'x\t \t y\n'|unexpand -t 5,8 should print "x\ty\n"
74 Let GNU su use the `wheel' group if appropriate.
75 (there are a couple patches, already)
77 sort: Investigate better sorting algorithms; see Knuth vol. 3.
79 We tried list merge sort, but it was about 50% slower than the
80 recursive algorithm currently used by sortlines, and it used more
81 comparisons. We're not sure why this was, as the theory suggests it
82 should do fewer comparisons, so perhaps this should be revisited.
83 List merge sort was implemented in the style of Knuth algorithm
84 5.2.4L, with the optimization suggested by exercise 5.2.4-22. The
85 test case was 140,213,394 bytes, 426,4424 lines, text taken from the
86 GCC 3.3 distribution, sort.c compiled with GCC 2.95.4 and running on
87 Debian 3.0r1 GNU/Linux, 2.4GHz Pentium 4, single pass with no
88 temporary files and plenty of RAM.
90 Since comparisons seem to be the bottleneck, perhaps the best
91 algorithm to try next should be merge insertion. See Knuth section
92 5.3.1, who credits Lester Ford, Jr. and Selmer Johnson, American
93 Mathematical Monthly 66 (1959), 387-389.
95 cp --recursive: perform dir traversals in source and dest hierarchy rather
96 than forming full file names. The latter (current) approach fails
97 unnecessarily when the names become very long.
99 Remove suspicious uses of alloca (ones that may allocate more than
102 Adapt these contribution guidelines for coreutils:
103 http://sources.redhat.com/automake/contribute.html
106 Changes expected to go in, someday.
107 ======================================
109 dd patch from Olivier Delhomme
111 Andreas Gruenbacher's xattr changes
113 Apply Bruno Haible's hostname changes
115 test/mv/*: clean up $other_partition_tmpdir in all cases
117 ls: when both -l and --dereference-command-line-symlink-to-dir are
118 specified, consider whether to let the latter select whether to
119 dereference command line symlinks to directories. Since -l has
120 an implicit --NO-dereference-command-line-symlink-to-dir meaning.
121 Pointed out by Karl Berry.
123 A more efficient version of factor, and possibly one that
124 accepts inputs of size 2^64 and larger.
126 dd: consider adding an option to suppress `bytes/block read/written'
127 output to stderr. Suggested here:
128 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=165045
130 Pending copyright papers:
131 ------------------------
132 ls --color: Ed Avis' patch to suppress escape sequences for
133 non-highlighted files
135 getpwnam from Bruce Korb
137 pb (progress bar) from Miika Pekkarinen
139 ------------------------------
141 Remove long-deprecated options. Search case-insensitive for
142 `deprecated' and `remove in '. Automate this.
144 Add a distcheck-time test to ensure that every distributed
145 file is either read-only(indicating generated) or is
146 version-controlled and up to date.
148 Implement Ulrich Drepper's suggestion to use getgrouplist rather
149 than getugroups. This affects only `id', but makes a big difference
150 on systems with many users and/or groups, and makes id usable once
151 again on systems where access restrictions make getugroups fail.
152 But first we'll need a run-test (either in an autoconf macro or at
153 run time) to avoid the segfault bug in libc-2.3.2's getgrouplist.
154 In that case, we'd revert to using a new (to-be-written) getgrouplist
155 module that does most of what `id' already does. Or just avoid the
156 buggy use of getgrouplist by never passing it a buffer of length zero.
157 See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200327
159 remove `%s' notation:
160 grep -E "\`%.{,4}s'" src/*.c
162 remove or adjust chown's --changes option, since it
163 can't always do what it currently says it does.
165 Adapt tools like wc, tr, fmt, etc. (most of the textutils) to be
166 multibyte aware. The problem is that I want to avoid duplicating
167 significant blocks of logic, yet I also want to incur only minimal
168 (preferably `no') cost when operating in single-byte mode.
170 Remove all uses of the `register' keyword
172 pr's use of nstrftime can make it malloc a very large (up to SIZE_MAX) buffer
174 ls.c: use gettime rather than clock_gettime, gettimeofday, time
178 Copyright (C) 2002-2007 Free Software Foundation, Inc.
180 This program is free software: you can redistribute it and/or modify
181 it under the terms of the GNU General Public License as published by
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187 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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