diff options
| author | Jim Meyering <jim@meyering.net> | 2003-03-27 15:55:55 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2003-03-27 15:55:55 +0000 |
| commit | bfaee25d1f20412a646250a10870b51d238d2054 (patch) | |
| tree | 8e26da4bc6b8de3ef609a422de6e7cb6b78bc8c8 /doc/coreutils.texi | |
| parent | 9ad2c98a28112eb041caf04f42cfd55b4f2fd892 (diff) | |
| download | coreutils-bfaee25d1f20412a646250a10870b51d238d2054.tar.xz | |
(sort invocation): Describe sort's --stable (-s) option.
Diffstat (limited to 'doc/coreutils.texi')
| -rw-r--r-- | doc/coreutils.texi | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 43499b1f1..9cecd2c48 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -3028,6 +3028,24 @@ On newer systems, @option{-o} cannot appear after an input file if scripts should specify @option{-o @var{output-file}} before any input files. +@item -s +@itemx --stable +@opindex -s +@opindex --stable +@cindex sort stability +@cindex disabling sort's last-resort comparison + +Make @command{sort} stable by disabling the last-resort +comparison that is performed in some cases. +By default, when lines compare equal based on command line options +that affect ordering, those lines are ordered using +a @dfn{last-resort comparison} that takes the entire +line as the key and acts as if no ordering options were specified. +But if @option{--reverse} (@option{-r}) was specified along with other +ordering options, then the last-resort comparison does use @option{--reverse}. +In any case, when no ordering option is specified or when only +@option{--reverse} is specified, the last-resort comparison is not performed + @item -S @var{size} @itemx --buffer-size=@var{size} @opindex -S |