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Learn Perl from Scratch

String Operators

Explore how to handle and manipulate strings in Perl using two key operators: concatenation and concatenation assignment. Understand how to join strings effectively and the differences between these operations to enhance your Perl scripting skills.

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There are only two string operators:

  • Concatenation (.):
  • Concatenation Assignment (.=)

Concatenation

The most important operation in strings is concatenation. It means joining one string to another. For instance, the concatenation of water and bottle will result in a string water bottle.

Run the code below to see how this is done:

Perl
$a = "water";
$b = " bottle";
$c = $a . $b; # $c => water bottle
print $c;

Concatenation assignment

Concatenation assignment is a slight variation of concatenation where you concatenate (add) one string at the end of another without the need for a third destination string. The difference between concatenation and concatenation assignment is similar to + and +=.

Run the code below to see how this works:

Perl
$a = "Hello";
$a .= " World"; # $a => Hello World
print $a;