Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/lib/lp/daemon/dumb
#!/bin/rc generic 'cat $LPDEST/$FILE(1)>$OUTDEV' 'cat <{echo -d$LPDEST -pnoproc -M$SCHEDLINE(1) -u$SCHEDLINE(2)} $LPDEST/$FILE;sleep 5} | lpsend.rc $DEST_HOST' ''