How to concatenate variables in Perl

Question

Is there a different way to concatenate variables in Perl?

I accidentally wrote the following line of code:

print \"$linenumber is: \\n\" . $linenumb         


        

Answer 1

If you change your code from

print "$linenumber is: \n" . $linenumber;

to

print '$linenumber is:' . "\n" . $linenumber;

or

print '$linenumber is:' . "\n$linenumber";

it will print

$linenumber is:
22

What I find useful when wanting to print a variable name is to use single quotes so that the variables within will not be translated into their value making the code easier to read.