
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 …
What's the use of <> in Perl? - Stack Overflow
Sep 5, 2012 · @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 …
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...
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 - 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.
In Perl, how can I read an entire file into a string?
Jun 5, 2009 · Here we read file handle into an array (with the getlines method), and then convert the array's value into a string (using join). getlines is a Perl file handle built-in method coming …
How can I store multiple values in a Perl hash table?
Dec 22, 2013 · How can I store multiple values in a Perl hash table? Asked 17 years ago Modified 11 years, 10 months ago Viewed 47k times