Install libdir-self-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libdir-self-perl
Description:
module providing a __DIR__ constant for the directory of the source file
Perl has two pseudo-constants describing the current location in your source code, __FILE__ and __LINE__. Dir::Self adds __DIR__, which expands to the directory your source file is in, as an absolute pathname. . This is useful if your code wants to access files in the same directory, like helper modules or configuration data. This is a bit like FindBin except it's not limited to the main program, i.e. you can also use it in modules. And it actually works.
Homepage: https://metacpan.org/release/Dir-Self
Version: 0.11-2
Section: universe/perl