henry@utzoo.UUCP (Henry Spencer) (11/02/84)
Kill(1) has had a -e option added to permit use of the new signal 0 to test for the existence of processes. Procalive(1) is a new utility which uses kill -e in the appropriate way, returning an exit code suitable for use in shell programs. -- Henry Spencer @ U of Toronto Zoology {allegra,ihnp4,linus,decvax}!utzoo!henry