add directory bin

bin/old/bash-1.11/examples/functions/whence2

@@ -0,0 +1,57 @@
+#
+# 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
+}