Perl: String Operations

By Xah Lee. Date: . Last updated: .

Substring

substr(string, offset, count).

# -*- coding: utf-8 -*-
# perl

print substr('012345', 0, 2); # "01"

String Length

Length of string is length(string).

print length('abc');

String Join and Repetition

use dot to join string.

# -*- coding: utf-8 -*-
# perl

$s = "a" . "b";

print $s;   # ab

String repetition is done with the operator x.

# -*- coding: utf-8 -*-
# perl

print 'abc' x 2;  # abcabc

Perl

Detail

String

Boolean

Conditional

Data Structure

Loop, Iteration

Function

Text Processing

Advanced

misc