RE: popen and error handling

Jaap Vermeulen (jaap@sequent.com)
Tue, 09 Nov 93 13:13:00 PST

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| eg. fh = popen('rubbish','r') doesn't raise an exception so how can I
| tell the difference between failed execution and no output ?

Check the value of fh.close(). It will return the exit value of the command
(or whatever the shell returns when it cannot find the command; popen uses
/bin/sh to execute the command).

-Jaap-

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