ref: 3ec2c4eecfd1b8553c614b03924a839202d17f9e
dir: /rc/bin/patch/remove/
#!/bin/rc
rfork e
if(~ $#* 0){
echo 'usage: patch/remove patch-name...' >[1=2]
exit usage
}
if(! test -d /n/sources/patch){
rfork n
9fs sources
}
for(i){
if(! test -d /n/sources/patch/$i)
echo 'no such patch' /n/sources/patch/$i >[1=2]
if not
rm -rf /n/sources/patch/$i
}