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Re: What does code 123 mean?... (Shell command failed with code 123 and


From: Xah
Subject: Re: What does code 123 mean?... (Shell command failed with code 123 and no output)
Date: Fri, 6 Jun 2008 00:30:48 -0700 (PDT)
User-agent: G2/1.0

Don Saklad wrote:
«What does code 123 mean?... in (Shell command failed with code 123
and no output)»

possibly the exit code of unix shell commands...

Here's a excerpt from “perldoc -f system”

 The return value is the exit status of the program as returned by the
 "wait" call. To get the actual exit value, shift right by eight (see
 below). See also "exec". This is *not* what you want to use to
 capture the output from a command, for that you should use merely
 backticks or "qx//", as described in "`STRING`" in perlop. Return
 value of -1 indicates a failure to start the program or an error of
 the wait(2) system call (inspect $! for the reason).

So you might also see:

man 2 wait
man 3 exit
http://en.wikipedia.org/wiki/Exit_status#Unix

  Xah
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∑ http://xahlee.org/

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