[RFC] ls: new option --full-path

[Bauke Jan Douma]

Good morning,

At the risk of being diagnosed with featuritis, I would like
propose here a new option to 'ls', namely --full-path / -P,
which would enable you to get an unambiguous fully qualified
path for the files listed.

Example:

$ cd / && ls -l --full-path /usr/X11R6/bin | head -n 5
total 17328
lrwxrwxrwx    1 root     staff           7 May 18 11:55 /usr/X11R6/bin/X -> 
/usr/X11R6/bin/XFree86
-rws--x--x    1 root     staff     1621548 May 20 00:03 /usr/X11R6/bin/XFree86
-rwxr-xr-x    1 root     staff        2764 Sep 30  2002 /usr/X11R6/bin/XWindows
-rwx--x--x    1 root     staff       27494 Mar  6 14:41 /usr/X11R6/bin/Xmark

Full path output would be useful for instance when making file
system 'ls-laR' dumps that you would expect people to grep for
file locations.

Before this is implemented -- I'm not sure if it should be
the full path relative to / or relative from cwd.

I seem to recall I was trying to implement this about two
years ago with the aid of 'find' and 'xargs', but had a hard
time -- something with quotes and whitespace iirc.  Now that I
think of it, I believe I had a working diff for ls.c at the
time.

Any thoughts?

-BJ