ref: d79c8496a265c3d71d0e5537471ffbb41fa33c24
dir: /acme/bin/Isspam/
#!/bin/rc
if(! ~ $#* 0){
echo usage: Isspam >[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/isspam