Which script (was Re: comp.unix.questions)

[Jim Rogers]

Following is a modest script in ksh to report the path of a script.
I suspect that this can be done much more elegantly.  The beauty of this
script is that it works correctly.


#! /bin/ksh

# This script displays the path name of the script itself
# from the command argument $0

name=$0
# look for the path in the above directory
first=${name#..}
if [ "$first" != "$name" ]
then
	cd ..
	fpth=$PWD$first
else
# look for the path in the current directory
	first=${name#.}
	if [ "$first" != "$name" ]
	then
		fpth=$PWD$first
	else
		case $name in
#	Absolute path specified
		/*)	fpath=$name; break;;
#	relative path below current directory
		*)	fpath=$PWD/$name; break;;
		esac
	fi
fi
spath=`print $ppth | tr "/" " "`	
for file in $spath
do
	continue
done
pth=${fpath%/$file}
print "path to $name is $pth"




Jim Rogers
Hewlett Packard Company