Perl vs Python: What are the Key Differences?

The language was designed with this idea in mind, in that it “doesn't try to tell the programmer how to program.”

This motto has been very much discussed in the Perl community, and eventually extended to There’s more than one way to do it, but sometimes consistency is not a bad thing either (TIMTOWTDIBSCINABTE, pronounced Tim Toady Bicarbonate).[1] In contrast, part of the Zen of Python is, "There should be one— and preferably only one —obvious way to do it."

perl -ne 'chomp(); if (-e $_) {print "$_\n"}'

Perl script in bash's HereDoc

How can I capture STDERR from an external command?

An alternate form of creating a 2-sized tuple is with the relation operator (->). This is a popular shortcut for representing key-value pairs in tuples:

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