A huge chunk of a developer's time is wasted in trying to repeat tasks and commands, especially when it comes to working with a bunch of UNIX or Linux machines and a good knowledge of shell scripting can free you from such mundane task and give time to do some interesting stuff. If you don't know what is shell scripting then let me tell you is nothing but a program written using shell built-ins and Linux commands to automate things e.g. checking if a host is reachable or finding and deleting large files which are older than certain days or archiving them into another machine. Basically, it's a tool which allows you to automate boring and repeating task and that's the way programmers should work. They should not be repeating stuff, instead should be investing that time to create a script or program which can automate that task.

Why learn shell scripting?

I always ask programmers, developers, and system admins to learn and master shell scripting because of its one of the skill which not only saves time and increases productivity but also separates yours from average programmers who don't have a passion for automation and not good with their tools.

I'll give you one of the real-world examples form my career. Once I was working on a project which had around 40 Linux hosts where our Java application was installed.

After one big release, we realized that one config change was missed and there wasn't enough time to do it a proper way i.e. to create another build and load into deployment tool (we're using Opsware that time) and release again. So, we decided to manually make the change in all 40 hosts.

I started doing changes and after 10 minutes later my tech lead came to me and ask all done? I said, well, I have just started, only two servers are done now. He looked at me with curiosity and asked how am I doing the changes?.

I told him that I am going to each box, opening the config file in

VI editor and then making the change. He took the control from me, make the change in the config file and writes a script to copy that file to all 40 servers, which took just 2 minutes to him and run it another 1 minutes and all done.

I was surprised, why I didn't think about that but my lack of Linux knowledge and shell scripting prevented me.

That day I realized that if you want to improve your productivity and impress your colleague then you must be good at your

tools and shell scripting is one of them.

Top 5 Shell Scripting Courses for Programmers

Now that you know what is shell scripting and why a programmer should learn shell scripting, it's time to go to next level, how do you learn shell scripting? or how can you improve your shell scripting skills in Linux? 
Well, an online training course is good starting point followed by a book for more comprehensive learning. Earlier I have shared some of the essential UNIX programming books and courses and today I am going to share some of the best online courses to learn Shell scripting in Linux.

Shell Scripting: Discover How to Automate Command Line Tasks

This is one of the best course to learn shell scripting from scratch, particularly if you don't have much experience in shell scripting and automation. The course is well laid and its neither very long nor very short, which means you will learn essential knowledge in quick time and start creating scripts in no time.

By the end of this course, you will be able to create shell scripts with ease. You'll learn how to take tedious and repetitious tasks and turn them into programs that will save you time and simplify your life on Linux, Unix, or MAC systems.

Here is the link to join this course:  Shell Scripting: Discover How to Automate Command Line Tasks

The course teaches essential shell scripting techniques e.g.
- checking exit status fo programs and commands and how to make effective use of them in shell scripts.
- how to accept input from the user
- how to write conditional statements and loops in shell scripts
- real-world examples of shell scripts from his collections.
- practice exercise and quizzes.

In short, one of the best course to learn shell programming for Linux, Unix, and Mac.

Linux Shell Programming for Beginners

This is one of the most complete course to learn shell scripting in Linux using bash shell. In this course instructor not only explains basics like what is a shell or what is bash and how it is different from just typing the command in command line but also goes on to show you how can automate your day-to-day task using shell scripts.  The course teaches you how to write bash scripts, explains how command history, echo commands, and variables work in bash, operators, loops, statements and all other concepts you need to write complex shell scripts to automate repetitive tasks. 
Here is the link to join the course: Linux Shell Programming for Beginners

In addition to providing you with all the theoretical information about BASH and Shell Scripting, the course also provides many examples at every step to get you familiar with how shell scripting works and what happens when you execute a particular shell script.

In short a fantastic course to learn how to write well documented, modular, efficient and complex shell scripts, automate daily routines, basic programming concepts such as loops, commands, and statements, how to effectively write command line processing, process management and even manipulate command-line functions.

Additionally, you can download all the scripts that were used by the instructor to try on your own.

Linux Shell Scripting: A Project-Based Approach to Learning

This is one of the comprehensive course to learn shell scripting or shell programming in Linux, particularly with the bash scripts.

In this course, you will learn basics like creating and using variables, shell built-in commands and operators, conditionals, loop, checking exit status and taking input from the user but also advanced concepts like performing text and string manipulation, processing multiple command line arguments, and error handling.

Here is the link to join this course: 

The best part of this course is that It's project-based, which means instead of learning bits and pieces of information, you'll write actual shell scripts that you can use in real-world situations. You get the chance to immediately put what you learn to use so that you fully understand and remember it.

Bash Shell scripting

Best complete course on Linux Bash scripting and command line

Shell scripting allows us to use the shell's abilities and to automate a lot of tasks that would otherwise require a lot of commands.

Here is the link to join the course: Bash Shell scripting

Bash scripting will help you automate routine tasks and save valuable time, whether you're a sysadmin, Linux user or software developer. A shell script is much quicker than programming in any other languages.

Bash Shell Scripting Tutorial for Beginners

Linux has many shells Like Bourne shell (sh), C shell (cash), Korn shell (ksh), and Bourne Again shell popularly known as bash.

It incorporates useful features from ksh and csh shell. bash is not only an excellent command line shell, but a scripting language in itself and this course helps you to realize the full potential of bash and Linux commands.

Here is the link to join the course: Bash Shell Scripting Tutorial for Beginners

In this course, you will not only learn how to use bash for writing shell scripts but also learn several useful Linux commands in quick time. Generally, anyone takes ages to discover those commands without any guidance, but this course teaches you in a couple of hours.




That's all about some of the best shell scripting courses for programmers and Linux users. Automation is really an important skill and as your experience and responsibility grow you will appreciate automation more. A good knowledge of shell scripting using bash in Linux or using Python or Perl or any other scripting language goes a long way to improve your productivity while working as IT professionals.


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