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