I need to write a script that does the following:

1) Examines a bunch of files (specified on the command line or whatever).

2) If some of them are ZIP archives, check if they contain a file with a particular name.

3) If they do, print the name of the ZIP archive.

I have written the script and it works, but I have a couple of questions:

1) I use the Archive::ZIP package. Problem is, if I try to use it on a file that isn't a ZIP archive, it barfs a bunch of errors. I would have expected it to fail gracefully and return some kind of error code, if the file isn't a properly formatted ZIP archive - but I was unable to make it behave like this. I have circumvented the issue by checking if the file begins with the ZIP archive signature ("PK\003\004") before opening it with Archive::ZIP->new() but I was wondering if there was a more elegant way.

2) Given that I don't need to extract anything from the archive (only check if a file exists inside), perhaps using the whole Archive::ZIP package is an overkill? Is there a more efficient way?

In reply to Checking if a file is present in a ZIP archive by bontchev

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