-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dan Track wrote: > On 4/7/06, Paul Howarth <paul@xxxxxxxxxxxx> wrote: >> Dan Track wrote: >>> Hi >>> >>> Simple question, I'm running a command `command`, what I'd like to do >>> is check to see if the response is empty then exit. Does anyone know >>> how I can perform that check? >> Exit if "command" produces no output: >> [ -z "$(command)" ] && exit >> >> Paul. > > Hi > > Incidentally. What do you have $() instead of just (). $(command) == `command` otherwise you would be testing the length of the literal string '(command)' this way we are running command and testing the length of its output. Regards Stuart - -- Stuart Sears RHCA RHCX To err is human, to forgive is Not Company Policy. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFENk8FamPtx1brPQ4RAg8EAJ4tJ6fs9ERTtfiCXioEj2BtjPtXtwCfdtky X0WOLiS8Ec4NbR0hiYkKu9c= =HpYj -----END PGP SIGNATURE-----
