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
Find size of an array in Perl - Stack Overflow
Sep 14, 2011 · I seem to have come across several different ways to find the size of an array. What is the difference between these three methods? my @arr = (2); print scalar @arr; # First way to print …
perl - Can't locate Switch.pm - Stack Overflow
sudo apt-get install libswitch-perl can solve the problem. But if there are multi-versions perl in your system like me, first choose 5.18 version for aosp v4.x, then use cpan command install Swtich, like …
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.
How do you round a floating point number in Perl?
Output of perldoc -q round Does Perl have a round () function? What about ceil () and floor ()? Trig functions? Remember that int() merely truncates toward 0. For rounding to a certain number of digits, …
In Perl, how can I read an entire file into a string?
Jun 5, 2009 · In Perl, how can I read an entire file into a string? Asked 16 years, 6 months ago Modified 4 months ago Viewed 204k times
In Perl, how do I change, delete, or insert a line in a file, or append ...
I want to make changes to the contents of a file by modifying, deleting or inserting lines or appending to the beginning of the file. How can I do that in Perl? This is a question from the official...
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 definition takes the for...
In Perl, how can I get the matched substring from a regex?
Jan 29, 2014 · However, Perl v5.20 started using copy-on-write in many places, and the issue with $& became mostly moot. Perl v5.18 had also made some changes so it only tracked the special per …
Should I use \\d or [0-9] to match digits in a Perl regex?
Per perldoc perluniintro, Perl does not support using digits other than [0-9] as numbers, so I would definitely use [0-9] if the following are both true: You want to use the result as a number (such as …