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bash1_12.arj
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whence2
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1991-07-07
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957b
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58 lines
#
# An almost-ksh compatible `whence' command. The one difference between this
# and the real ksh `whence' is that this version, when the "-v" flag is not
# given and presented with something that is not in the path, simply echos it
# without more checking to see if it is a function, builtin, or alias.
#
# Chet Ramey
# chet@ins.CWRU.Edu
#
whence()
{
local vflag
local path
vflag=
path=
if [ $# = "0" ] ; then
echo "whence: argument expected"
return 1
fi
case "$1" in
-v) vflag=1
shift 1
;;
-*) echo "whence: bad option: $1"
return 1
;;
*) ;;
esac
if [ $# = "0" ] ; then
echo "whence: bad argument count"
return 1
fi
for cmd
do
if [ "$vflag" ] ; then
echo $(builtin type $cmd | sed 1q)
else
path=$(builtin type -path $cmd)
if [ "$path" ] ; then
echo $path
else
case "$cmd" in
/*) echo ""
;;
*) echo "$cmd"
;;
esac
fi
fi
done
return 0
}