ref: d6281e73eb8334ff1bce556b76a3219e5d3e5198
dir: /acme/bin/Unspam/
#!/bin/rc
if(! ~ $#* 0){
echo usage: Unspam >[1=2]
exit usage
}
if(! ~ `{pwd} /mail/fs/*/[0-9]* || ! test -f raw || ! test -f unixheader){
echo must run in mail directory >[1=2]
exit 'bad dir'
}
cat unixheader raw | upas/unspam