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I hope this is not a stupid question. I need to add two script variables and expr give me an error message saying "non-numeric argument." But they have numeric values. BTW, I am using Borne shell....

Thanks for enlightening me. I guess I know the mechanism of how exit code is constructed. Just like you said, shell scripting is somewhat different. I believe certain exit codes should be avoided. ...

Hi,

I am working on Solaris 8 and the "intro" man page says, "Upon termination, each command returns two bytes of status, one supplied by the system and given the cause for termination, and (in...