Michael L Torrie wrote:
> I have a script that is passed a filename. This filename could be
> absolute, it could be relative. I need the script to be able to
> determine the pull path to this file. I've read lots of hacks for doing
> this that involve ls, find, and pwd, but none of them do what I need.
> If the script was invoked like this,
>
> foo ../bar
Here's my pure bash method of accomplishing this, if anyone cares. :)
if [ "`echo $path | cut -c1-1`" != "/" ]; then
path=`pwd`/$path
fi
#step one: remove single . paths
path=`echo $path | sed -e 's!/\./!/!g'`
#step two: remove 'something/../' with ''
path=`echo $path | sed -e 's![^/]*/\.\./!!g'`
#step three: remove duplicate slashes
path=`echo $path | sed -e s'!//!/!g'`
>
> then I need foo to be able to get a path that's the real, reduced path,
> without any dots in it. In other words, `pwd`/../bar is not going to
> work.
>
> Any tips?
>
> thanks.
--
Michael Torrie
Assistant CSR, System Administrator
Chemistry and Biochemistry Department
Brigham Young University
Provo, UT 84602
+1.801.422.5771
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