#!/bin/rc
# updiff [-bcnrw] file...
rfork e
dflag=(-n)
while(~ $1 -[bcnrw]){
	dflag=($dflag $1)
	shift
}

path = (/bin/)

d = /n/sources/plan9
if(! test -e $d)
	9fs sources

for(i in $*){
#	echo '=====' $i '====='
#	ls -lmd $i
	switch($i){
	case /*
		diff -m $dflag $d/$i $i 
	case *
		i = `{cleanname -d `{pwd} $i}
		diff -m $dflag $d/$i $i
	}
}