Nov 10, 2019 · 53 From Perl documentation: OR List operators On the right side of a list operator, it has very low precedence, such that it controls all comma-separated expressions found there.

Dec 30, 2010 · 128 perldoc perlvar is the first place to check for any special-named Perl variable info. Quoting: @_: Within a subroutine the array @_ contains the parameters passed to that …

Jun 10, 2011 · Below are the flags that I encounter most often, and I don't have a clue what they mean: perl -pe perl -pi perl -p perl -w perl -d perl -i perl -t I will be very grateful if you tell me …

The match operator is the syntax that tells the Perl interpreter: here comes a regex. In Perl, the match operator is normally delimited by '/' at start and end, but you can use delimiters (e.g., …

In Perl, what is a good way to perform a replacement on a string using a regular expression and store the value in a different variable, without changing the original? I usually just copy the stri...

Jun 29, 2012 · In the case of perl /usr/bin/perl is the path to the perl interpreter. If the hashbang is left out the *nix systems won't know how to parse the script when invoked as an executable.

Jun 22, 2017 · See perlfunc. It lists all the Perl built-in functions, including the "file test" ones: -X FILEHANDLE -X EXPR -X DIRHANDLE -X Where -X is one of the following: -r: File is …

I have been reading about Perl recently and am slightly perplexed about how Perl handles arguments passed to subroutines. In a language like Python, Java or PHP, a function …

This is a Perl program, run using a terminal (Windows Command Line). I am trying to create an "if this and this is true, or this and this is true" if statement using the same block of …

Dec 5, 2015 · If I have a Perl hash with a bunch of (key, value) pairs, what is the preferred method of iterating through all the keys? I have heard that using each may in some way have …