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How Linux Exit Codes Help You Write Robust Scripts

Each Linux command returns an exit code, with 0 indicating success and non-zero values indicating failure. You can use the $? variable to access the exit code and control program flow in scripts. Be ...
Ars Technica

pppd Exit Status 8

Exit Status 8 = The connect script failed (returned a non-zero exit status).<BR><BR>I am using kppp and cant figure out what would cause this error? It happens (when I use a terminal to log in) after ...
Computerworld

Making better use of exit codes

ITworld.com – Some of the worst-written scripts that I have encountered perform some action on behalf of the person running the script and then blithely continue on without ever checking whether the ...
Ars Technica

Redhat update error (exit status 255)

I'm trying to recover a broken system using Redhat's rescue mode (Redhat AS 4). I have the root file system mounted. When trying to install some RPMs, up2date fails with 'exit status 255'. No further ...