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[bug-diffutils] bug#17185: bug#17185: diff --help doesn't mention short
[bug-diffutils] bug#17185: bug#17185: diff --help doesn't mention short forms of some options
Sat, 30 Apr 2016 20:03:13 -0700
tags 17185 notabug
On Fri, Apr 4, 2014 at 4:05 AM, Jay Foad <address@hidden> 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
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Jim Meyering <=