G'day g_speran,

As ++swl hinted, you may be commenting out the argument.

Arguments with no hashes:

$ perl -E 'say "Args (@ARGV): ", 0+@ARGV' A B C
Args (A B C): 3
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Arguments commented out with hash:

$ perl -E 'say "Args (@ARGV): ", 0+@ARGV' #A B C
Args (): 0
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Arguments with an escaped hash to prevent commenting:

$ perl -E 'say "Args (@ARGV): ", 0+@ARGV' \#A B C
Args (#A B C): 3
[download]