1. A shell-command returns '0' on success, and $? > 0 on failure.
This one-liner illustrates this (on unix): 

perl -e 'print "true" if `/bin/true`, $?; print "false" if `/bin/false
+`, $?'
false

[download]

2. Your code will state a succesful call if the command produced any output on STDOUT, check $? for the return-code instead of the output!

regards,
tomte

In reply to Re: Successful returns Unsuccessful by Tomte
in thread Successful returns Unsuccessful by 2mths

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