I've got a little backup script running on Windows NT in which I call the InfoZIP zip program using the following construction: system("zip -rq $target $project_root") or die "couldn't exec zip: $!"; The creation of the zip file occurs correctly, but I always get the die message. I ran the following code as a test and verified that the return value was zero: 
$test = system("zip x:\\test.zip x:\\test.txt");
print $test;

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I checked the Camel Book, and sure enough, the or die construction executes the die portion if the left side is false. I guess I could be losing my memory, but I thought that normally executing programs return 0 to signify a normal exit. I use the or die construction all the time. At any rate, should I go ahead with something like not system("zip -rq $target $project_root") or die "couldn't exec zip: $!"; or is there something I'm not seeing here.

In reply to Handling weird return values with or die by mvaline

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