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, …

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 …

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 …

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 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.

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

Jun 10, 2011 · However, when I try to google for what each flag means, I mainly get results to generic Perl sites and no specific information regarding the flags or their use is found there. …

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 …

See perldoc perlop.Use lt, gt, eq, ne, and cmp as appropriate for string comparisons:. Binary eq returns true if the left argument is stringwise equal to the right argument.

On perl >= 5.10 the smart match operator is surely the easiest way, as many others have already said. On older versions of perl, I would instead suggest List::MoreUtils::any. List::MoreUtils is …