remove references to hardcoded /usr/local/plan9 where possible

bin/g

@@ -1,19 +1,37 @@
-#!/usr/local/plan9/bin/rc
+#!/bin/sh
 
-flags=()
-while(! ~ $#* 1 && ~ $1 -*){
-	flags=($flags $1)
-	shift
-}
+inflags=yes
+flags=""
+while [ $# != 0 -a $inflags = yes ]
+do
+	case "$1" in
+	-*)
+		flags="$flags $1"
+		shift
+		;;
+	-)
+		inflags=no
+		shift
+		;;
+	*)
+		inflags=no
+		;;
+	esac
+done
 
-switch($#*){
-case 0
-	echo 'usage: g [flags] pattern [files]' >[1=2]
+case $# in
+0)
+	echo 1>&2 'usage: g [flags] pattern [files]'
 	exit 1
-case 1
-	9grep -n $flags -- $1 *.[Cbchm] *.cc *.py *.tex *.ms *.java /dev/null \
-	  |[2] {9grep -v '^(grep: can''t open \*|grep: \*\.)' >[1=2]; status=0}
-case *
-	9grep -n $flags -- $* /dev/null
-}
+	;;
+1)
+	pattern="$1"
+	files=`/bin/ls *.[bcChm] *.cc *.py *.tex *.ms *.java 2>/dev/null`
+	;;
+*)
+	pattern="$1"
+	shift
+	files="$@"
+esac
 
+exec grep -n $flags -- "$pattern" $files /dev/null