Top 5 Online Courses to Learn Perl in 2026 - Best of Lot

Hello guys, today, I am going to talk about a really powerful programming language for text processing - Perl. I first come across Perl 10 years ago while creating a Perl script to generate a report from log files. At that time, I know that when it comes to string and text processing, there is no match for Perl. It offers a lot of useful data structure and tools which makes loading data from file and process a lot easier than any other programming language. Since scripting is an important skill for a senior developer, knowing a programming language like Python or Perl can really make a difference.

How to use mkdir command to make directories in Linux and UNIX? mkdir -p Example

One of the most common tasks in any Linux is creating directories, and most of us spend a lot of time creating complex directory structures in UNIX and Linux.  I am sure you know about the mkdir command, we have been using this command in almost every operating system like DOS, Windows, Linux, OS/2, Solaris, or any other *NIX operating system. It is one of the basic commands but as important as find, grep or chmod.  mkdir stands for "make directory" and this command is literally used to create directories. Suppose, you need to create a directory tree-like /opt/software/java/app/config, how are you going to create these directories? One by one right? Well, yes you can use mkdir and command to create these directories one by one as shown in below example :

How to Create and Run a batch file in Windows - .bat File Example

batch files and shell scripts are developers best friend, they help to improve productivity a lot. They not only help you to automate boring, time consuming task but also saves lot of time doing and doing them again. Batch file also reduce chances of error, once tested and encourage re-usability by sharing them across team or people with similar needs. Though not every programmer, developer or computer user has mindset to use batch file, something it's too difficult to write, some just not able to fight with initial resistance and many of them are not even aware of batch file.