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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
- Whats the use of lt; gt; 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 (= gt;) 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"
- terminology - What does ~~ mean in Perl? - Stack Overflow
5 It is the smartmatch operator In general, when you want information about operators in Perl, see perldoc perlop
- regex - What is ^ and i in Perl? - Stack Overflow
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 , m{^foo})
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