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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 7561f2a61..f40993ec1 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -4126,6 +4126,11 @@ is counted from the first nonblank character of the field. @vindex POSIXLY_CORRECT On older systems, @command{sort} supports an obsolete origin-zero syntax @samp{+@var{pos1} [-@var{pos2}]} for specifying sort keys. +The obsolete sequence @samp{sort +@var{a}.@var{x} -@var{b}.@var{y}} +is equivalent to @samp{sort -k @var{a+1}.@var{x+1},@var{b}} if @var{y} +is @samp{0} or absent, otherwise it is equivalent to @samp{sort -k +@var{a+1}.@var{x+1},@var{b+1}.@var{y}}. + This obsolete behavior can be enabled or disabled with the @env{_POSIX2_VERSION} environment variable (@pxref{Standards conformance}); it can also be enabled when @env{POSIXLY_CORRECT} is |