I'm writing a quick script which accepts files on the command-line (ARGV), and processes them. I want to check if a 'file' is actually directory ('-d $filename') - and if it's a directory, 'recurse' through that directory tree, and 'push' all the files in the directory onto the end of @ARGV. Some questions:<>

1) How would I recurse through the directory tree? How do I specify I only want '.mp3' files, or '.pl' files?

2) Is it safe to alter a scalar array in the middle of a 'foreach' loop? For example:

foreach $word (@WORDS) {
push(@WORDS, "hello") if $word eq "salutations";<> }

In reply to recurse directories? by Anonymous Monk

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