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operators - What does =~ do in Perl? - Stack Overflow
51 I guess the tag is a variable, and it is checking for 9eaf - but does this exist in Perl? What is the "=~" sign doing here and what are the "/" characters before and after 9eaf doing?

What is the meaning of @_ in Perl? - Stack Overflow
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 subroutine. More details can be found in perldoc perlsub (Perl subroutines) linked from the perlvar: Any arguments passed in show up in the array @_ .

operators - What is the difference between "||" and "or" in Perl ...
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.

What's the use of <> in Perl? - Stack Overflow
@pst, <> is not a file handle, "null" or otherwise. It's an operator. Specifically, the readline operator. There's a reference to it as the "angle operator" in perlvar, although there isn't actually any such operator. The angle brackets are used by two operators: readline or glob. The operator depends on the contents of the brackets.

How does double arrow (=>) operator work in Perl? - Stack Overflow
The => operator in perl is basically the same as comma. The only difference is that if there's an unquoted word on the left, it's treated like a quoted word. So you could have written Martin => 28 which would be the same as 'Martin', 28. You can make a hash from any even-length list, which is all you're doing in your example. Your Readonly example is taking advantage of Perl's flexibility with ...

How can I parse command-line arguments in a Perl program?
I'm working on a Perl script. How can I parse command line parameters given to it? Example: script.pl "string1" "string2"

linux - Perl command line multi-line replace - Stack Overflow
The -p causes Perl to iterate over every line of the input and execute the given code for each of them (and to print the lines afterwards). Specifically, the command

operators - what is ||= in perl for? - Stack Overflow
In Perl, logical values are generally represented by 0 (or sometimes '' or undef) for false and 1 for true. However, to be more specific, any value that is not one of the above three false values is treated as true, and sometimes programmers refer to this distinction using the informal terms "truthy" and "falsy".

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 pri...

String compare in Perl with "eq" vs "==" - Stack Overflow
String compare in Perl with "eq" vs "==" [duplicate] Asked 13 years ago Modified 9 months ago Viewed 346k times