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?

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 …

Feb 2, 2016 · 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 …

I'm working on a Perl script. How can I parse command line parameters given to it? Example: script.pl "string1" "string2"

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., …

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 …

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 …

Jan 4, 2011 · Is there a built-in function to trim leading and trailing whitespace such that trim(" hello world ") eq "hello world"?

The difference is that when no variable is supplied for the loop, Perl automatically sets the default $_ to provide each item. Similarly when calling subroutines (or methods - {subroutine in an …

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