
operators - What is the difference between "||" and "or" in Perl ...
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.
What is the meaning of @_ in Perl? - Stack Overflow
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 …
Perl flags -pe, -pi, -p, -w, -d, -i, -t? - Stack Overflow
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 …
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., …
How do I perform a Perl substitution on a string while keeping the ...
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...
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
perl - Regex to match any character including new lines - Stack …
Perl v5.12 added the \N as a character class shortcut to always match any character except a newline despite the setting of /s. This allows \n to have a partner like \s has \S.
What's the safest way to iterate through the keys of a Perl hash?
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 …
Perl subroutine arguments - Stack Overflow
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 …
How can I print the contents of a hash in Perl? - Stack Overflow
Jul 21, 2009 · I keep printing my hash as # of buckets / # allocated. How do I print the contents of my hash? Without using a while loop would be most preferable (for example, a one-liner would …