
operators - What does =~ do in Perl? - Stack Overflow
14 The '=~' operator is a binary binding operator that indicates the following operation will search or modify the scalar on the left. The default (unspecified) operator is 'm' for match. The …
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 …
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 does the -> arrow do in Perl? - Stack Overflow
7 Perl arrow operator has one other use: Class−>method invokes subroutine method in package Class though it's completely different than your code sample. Only including it for …
What's the use of <> in Perl? - Stack Overflow
Mar 13, 2015 · @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 …
What does exactly perl -pi -e do? - Stack Overflow
Jan 25, 2015 · What does exactly perl -pi -e do? Asked 10 years, 4 months ago Modified 10 years, 4 months ago Viewed 9k times
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...
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 …
operators - What does =~ mean in Perl? - Stack Overflow
May 2, 2012 · Possible Duplicate: What does =~ do in Perl? In a Perl program I am examining (namly plutil.pl), I see a lot of =~ on the XML parser portion. For example, here is …
How do you round a floating point number in Perl?
Oct 8, 2008 · 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 …