Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

Re: Best method to capture return code from system calls?

by davidrw (Prior)
on Aug 24, 2005 at 14:49 UTC ( #486214=note: print w/replies, xml ) Need Help??

in reply to Best method to capture return code from system calls?

regarding the return code from system, here's a perldoc -f system snippet:
               The return value is the exit status of the program
               as returned by the "wait" call.  To get the actual
               exit value divide by 256. 
    -- snip --
               You can check all the failure possibilities by
               inspecting "$?" like this:

                   $exit_value  = $? >> 8;
                   $signal_num  = $? & 127;
                   $dumped_core = $? & 128;
See also the $? section in perldoc perlvar. In brief, it is The status returned by the last pipe close, backtick ("``") command, successful call to wait() or waitpid(), or from the system() operator.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://486214]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (5)
As of 2016-10-22 11:42 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (294 votes). Check out past polls.