Bash help

[BRIAN SCHRAMM <BSCHRAMM@email.usps.gov>]

     I am trying to tell if a program is passing back an error in a Bash
     script.  I would like to branch on receipt of the error to a wait
     statement that will give me about 20 seconds and then retry.

     My trouble is I cannot remember how to detect the error and how to
     make the shell wait a definite amount of time.  Can anyone help me?

     Thanks

     Brian Schramm
     bschramm@bigfoot.com
     bschramm@email.usps.gov


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