Install libperl6-slurp-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libperl6-slurp-perl
module implementing the Perl 6 'slurp' built-in
Perl6::Slurp allows you to "slurp" in contents from a file or a file handle into a scalar or an array. This used to be done by modifying the $/ built-in, but Perl6::Slurp provides the ease of use of the Perl 6's slurp() function.