GNU bug report logs -
#17185
diff --help doesn't mention short forms of some options
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Reported by: Jay Foad <jay.foad <at> gmail.com>
Date: Fri, 4 Apr 2014 15:46:01 UTC
Severity: normal
Done: Jim Meyering <jim <at> meyering.net>
Bug is archived. No further changes may be made.
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Message #10 received at 17185-done <at> debbugs.gnu.org (full text, mbox):
tags 17185 notabug
done
On Fri, Apr 4, 2014 at 4:05 AM, Jay Foad <jay.foad <at> gmail.com> wrote:
> $ diff --help | egrep "label|unidirectional|speed"
> --label LABEL use LABEL instead of file name
> --unidirectional-new-file treat absent first files as empty
> --speed-large-files assume large files and many scattered small changes
>
> It would be nice if the help text told me that these options have
> short forms -L, -P and -H respectively.
Thanks for noticing, but I have deliberately undocumented those
short-named options because they are slated to be used differently in
a future release: for link-traversal control, as is already done in
many other tools, e.g., find, cp, du:
$ cp --help|grep -e '-[LHP]'
-H follow command-line symbolic links in SOURCE
-L, --dereference always follow symbolic links in SOURCE
-P, --no-dereference never follow symbolic links in SOURCE
This bug report was last modified 9 years and 54 days ago.
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