From a discussion on Hacker News:

One particulary mnemonic collection of switches is -plane: perl -plane 'my $script'. -n and -p are mutually exclusive, but as -p overrides -n, it is easier to just remove -p if necessary.

Few other users in another discussion there mentioned -E -n -l -p options especially useful.

Is there anything really cool about -plane or -Enlp? Are they really somewhat a "Holy Grail" of running Perl scripts from the command line, and why?

submitted by /u/Impressive-West-5839
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I thought I had seen somethink about this, but does Perl reserve a block of memory upon startup for user variables? Or are user variables always allocated when they are created/initialized with Newx, Newxz ?
From some benchmarks it seems that Perl does set some memory aside to avoid requesting memory from the OS all the time, and I thought I had seen some material about how to modify this "scratch space" but I could be very wrong or senile.

submitted by /u/ReplacementSlight413
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I have noticed the Perl Cookbook, 2nd Edition as an outstanding reference. How about the work Perl by Example, Fifth Edition? How does it compare? Would you recommend it as a reference as well?

submitted by /u/fosres
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