-f tests its right-hand argument to see if it's a file. You can read about it in the Perl documentation in the Functions section under -X. In this case -X is just symbolic of all the different "dash whatever" tests. Here's a link: -X.
Basically it returns true if the argument is a name of a real file in your current working directory, and false if not.
Dave
In reply to Re: What does -f mean
by davido
in thread What does -f mean
by flycast
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