OT scripting question

[chbaker at powersystems.rockwell.com]

If you are using the korn shell, #!/bin/ksh, the exit value of the previous
command is stored in
''$?'' w/o the quotes. The same special variable works in perl but it may
have the last status
value returned from the last system, pipe close, or back tick ( ex. `date
+%Y%m%d` )
command.

Charles H. Baker
chbaker at powersystems dot rockwell dot com
work: 864.281.2409 fax: 864.281.2487 cell: 864.363.5302
BOFH excuse #341:
HTTPD Error 666 : BOFH was here


                                                                                                                                                
                      Jeff McKeon <jsm at inpro.net>                                                                                               
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                      ceforge.net                           Subject: [Nagios-users] OT scripting question                                       
                                                                                                                                                
                                                                                                                                                
                      04/28/2003 01:19 PM                                                                                                       
                                                                                                                                                
                                                                                                                                                



hell all,

I know this is sort of off topic but it's for a script I'm writing to
use with nagios so I beg forgiveness..

When using a command like grep that returns an exit status (0 for match,
1 for no match, 2 for errors) how i use that exit status in a script.
In other words, what variable is assigned the 0, 1 or 2?

So if i had:

# look for "hello" in /tmp/somefile

/bin/grep -q hello /tmp/somefile

/bin/echo (exit status)

what would I replace "(exit status)" with so that it would echo the 0, 1
or 2?

thanks

--
Jeff McKeon <jsm at inpro.net>



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