Perl readlink Function

Description

This function returns the pathname of the file pointed to by the link EXPR, or $_ if EXPR is not specified

Syntax

Following is the simple syntax for this function:

readlink EXPR

readlink

Return Value

This function returns undef on error otherwise pathname of the file.

Example

Following is the example code showing its basic usage:

#!/usr/bin/perl -w

# assume /tmp/test is a symbolic link on /tmp/usr/test.pl

readlink "/tmp/test";

When above code is executed, it produced following result

/tmp/usr/test.pl