Hashes as you know are basically key-value pairs. So in Perl, if you want to find the size of hashes, check this out. Consider a simple p...

In Perl, if we want the user to pass certain options at command line, we can define the switches in the program code using Getopts. Followi...

Previously, we covered the Perl Listbox example using the Tk module. In this post, we will discuss about using Tk to create a simple Messag...

In order to list all the CPAN modules installed on a system, use the following command : instmodsh Now you'll see the following men...

Perl programming language can be used to design GUI interfaces as well. Some most known modules used for this are Tk , Prima , Gtk2 , wxPer...

When you buy new software, there usually is a license key associated with your copy.  Ever wondered, how these keys get generated? Typicall...

In Perl, the command line arguments are stored in the array @ARGV . So the first argument passed can be displayed by $ARGV[0] The secon...

Perl interpreter can handle 3 basic data types : Scalar - it stores single values. It must have the $ prefix sign Eg: $myvar Arra...

Here's a sample illustrative script to read filenames from within a directory recursively in Perl and then executing some commands is a...

While using arrays in a Perl program, sometimes you might require only a part or a chunk of the array instead of the whole. Splice is a...

In Perl, the basic difference between the keywords 'chop' and 'chomp' is as follows: Chop is used to literally chop the ...

In Perl, the main difference between system, exec and backtick is what happens during the compile time. Just to refresh your memory, the...