ref: 5086f3453d6716d6dcd782a45831c1ebb0f2b115
dir: /test/Compare.p/
#!/bin/rc
rfork e
oldawk=awk
awk=kwa
for(i in p.*){
echo -n $i:
$oldawk -f $i test.countries test.countries >foo1
$awk -f $i test.countries test.countries >foo2
if(cmp -s foo1 foo2)
echo
if not
echo BAD
diff -b foo1 foo2 | sed 's/^/ /;10q'
}