Hi all,
ls(1) says that the -t option will:
Sort by time modified (most recently modified first) before sort-
ing the operands by lexicographical order.
which I take to mean that items (in the same directory) with the same
timestamp should be further sorted according to their names. Unfortunately
it doesn't really work that way:
(562) tuatara:/tmp/foo $ ls -lt
total 0
-rw-rw-r-- 1 scott wheel 0 19 Jun 17:48 c
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 b
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 d
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 e
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 f
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 g
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 h
-rw-rw-r-- 1 scott wheel 0 19 Jun 17:13 i
-rw-rw-r-- 1 scott wheel 0 19 Jun 17:13 j
-rw-rw-r-- 7 scott wheel 0 19 Jun 17:13 a
-rw-rw-r-- 1 scott wheel 0 19 Jun 17:13 k
This is on a 4.10-PRERELEASE machine, but the -CURRENT code seems to be
identical as far as sorting goes.
Is this intended behaviour? If so, the documentation is wrong. Otherwise,
the attached patch produces the expected output. I can commit it if there
are no objections.
Scott
--
===========================================================================
Scott Mitchell | PGP Key ID | "Eagles may soar, but weasels
Cambridge, England | 0x54B171B9 | don't get sucked into jet engines"
scott at fishballoon.org | 0xAA775B8B | -- Anon
Index: cmp.c
===================================================================
RCS file: /home/ncvs/src/bin/ls/cmp.c,v
retrieving revision 1.9.2.2
diff -u -r1.9.2.2 cmp.c
--- cmp.c 8 Jul 2002 06:59:27 -0000 1.9.2.2
+++ cmp.c 19 Jun 2004 16:54:55 -0000
@@ -67,35 +67,47 @@
int
modcmp(const FTSENT *a, const FTSENT *b)
{
- return (b->fts_statp->st_mtime - a->fts_statp->st_mtime);
+ return (a->fts_statp->st_mtime == b->fts_statp->st_mtime ?
+ namecmp(a, b) :
+ b->fts_statp->st_mtime - a->fts_statp->st_mtime);
}
int
revmodcmp(const FTSENT *a, const FTSENT *b)
{
- return (a->fts_statp->st_mtime - b->fts_statp->st_mtime);
+ return (a->fts_statp->st_mtime == b->fts_statp->st_mtime ?
+ revnamecmp(a, b) :
+ a->fts_statp->st_mtime - b->fts_statp->st_mtime);
}
int
acccmp(const FTSENT *a, const FTSENT *b)
{
- return (b->fts_statp->st_atime - a->fts_statp->st_atime);
+ return (a->fts_statp->st_atime == b->fts_statp->st_atime ?
+ namecmp(a, b) :
+ b->fts_statp->st_atime - a->fts_statp->st_atime);
}
int
revacccmp(const FTSENT *a, const FTSENT *b)
{
- return (a->fts_statp->st_atime - b->fts_statp->st_atime);
+ return (a->fts_statp->st_atime == b->fts_statp->st_atime ?
+ revnamecmp(a, b) :
+ a->fts_statp->st_atime - b->fts_statp->st_atime);
}
int
statcmp(const FTSENT *a, const FTSENT *b)
{
- return (b->fts_statp->st_ctime - a->fts_statp->st_ctime);
+ return (a->fts_statp->st_ctime == b->fts_statp->st_ctime ?
+ namecmp(a, b) :
+ b->fts_statp->st_ctime - a->fts_statp->st_ctime);
}
int
revstatcmp(const FTSENT *a, const FTSENT *b)
{
- return (a->fts_statp->st_ctime - b->fts_statp->st_ctime);
+ return (a->fts_statp->st_ctime == b->fts_statp->st_ctime ?
+ revnamecmp(a, b) :
+ a->fts_statp->st_ctime - b->fts_statp->st_ctime);
}
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