HOW CAN I PARSE COMMAND-LINE ARGUMENTS IN A PERL PROGRAM?
It's also worth noting that in some programming languages the first (0) argument is the command or script itself... not so in perl though, of course. – danieltalsky Commented Dec 12, 2008 at 5:46 From stackoverflow.com
PERL: USE S/ (REPLACE) AND RETURN NEW STRING - STACK OVERFLOW
In Perl, the operator s/ is used to replace parts of a string. Now s/ will alter its parameter (the string) in place. I would however like to replace parts of a string befor printing it, as in From stackoverflow.com
WHAT IS THE DIFFERENCE OF USING SPECIAL VARIABLE $_ AND @_ IN PERL?
Feb 1, 2012 The reason $_ is used so often is that some Perl operators assign to it by default, and others use its value as a default for their argument. It can lead to shorter code if you … From stackoverflow.com
OPERATORS - WHAT IS THE DIFFERENCE BETWEEN "||" AND "OR" IN PERL ...
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. From stackoverflow.com
WHAT DOES EXACTLY PERL -PI -E DO? - STACK OVERFLOW
Jan 25, 2015 You can inspect the code actually used by Perl with the core module B::Deparse. This compiler backend module is activated with the option -MO=Deparse. From stackoverflow.com
Mar 13, 2015 So, if the shell is handing you a bunch of file names, and you'd like to go through each one's data in turn, perl's <> operator gives you a nice way of doing that...it puts the next … From stackoverflow.com
WHAT DOES THE -> ARROW DO IN PERL? - STACK OVERFLOW
Perl arrow operator has one other use: Class−>method invokes subroutine method in package Class. though it's completely different than your code sample. Only including it for … From stackoverflow.com
VARIABLES - WHAT IS THE MEANING OF @_ IN PERL? - STACK OVERFLOW
Dec 30, 2010 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 … From stackoverflow.com
SYNTAX - WHAT ARE THE DIFFERENCES BETWEEN $, @, % IN A PERL …
Here the sigil changes to $ to denote that you are accessing a scalar, however the trailing [0] tells perl that it is accessing a scalar element of the array in _ or in other words, @_. – Eric Strom From stackoverflow.com
OPERATORS - WHAT DOES =~ DO IN PERL? - STACK OVERFLOW
man perlop "perlop - Perl operators and precedence" (at least in UNIX-like) answers this question: "Binary "=~" binds a scalar expression to a pattern match." – U. Windl Commented Apr 1, … From stackoverflow.com
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