Originally I thought of a hash because both posts (reading in a text file and subdirectory question) ask for a hash. If this was indeed some kind of homework, then whoever thought it out knew he can use a hash.

You are right: chomp is actually better, because if you have newlines in filenames, you can give the program a nul-delimited list of filenames, start the script with perl -0, and it would magically work.

I don't think that $names{$_} = (); would be better on memory usage than $names{$_} = 1;, as the former has to allocate an undef, which is not any smaller than an integer. Don't trust me in this however, as I'm not good in perlguts.

In reply to Re^4: subdirectory question by ambrus
in thread subdirectory question by blakeduke

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