What is the most popular shell scripting language?

Bash
Bash is the default shell for many Unix-based operating systems, including most Linux distros and all macOS releases up to macOS Catalina that replaced Bash with Z shell (Zsh) in 2019.

How do you write a good shell script?

In this article, we will share 10 useful and practical tips for writing effective and reliable bash scripts and they include:

1. Always Use Comments in Scripts.
2. Make a Script exit When Fails.
3. Make a Script exit When Bash Uses Undeclared Variable.
4. Use Double Quotes to Reference Variables.
5. Use functions in Scripts.

What is $? shell script?

$? is a special variable in shell that reads the exit status of the last command executed. After a function returns, $? gives the exit status of the last command executed in the function.

What is the first line of a bash script?

Adding #!/bin/bash as the first line of your script, tells the OS to invoke the specified shell to execute the commands that follow in the script. #! is often referred to as a “hash-bang”, “she-bang” or “sha-bang”.

Should I learn shell scripting?

While shell scripts can be used for more complex tasks, they are usually not the best choice. If you have ever successfully trued a bicycle wheel (or paid someone else to do so), that’s similar to learning the basics of shell scripting.

What are some good examples of simple games with shell scripts?

The challenge is to find one that’s simple enough where a shell script will work, but isn’t so simple that it ends up being only a half-dozen lines. Magic 8-Ball is a perfect example. It turns out that the entire “predict the future” gizmo was really just a 20-sided die floating in dark purple fluid.

What is the C shell scripting language used for?

However, the C shell scripting language has its uses, particularly for writing scripts that set up environment variables for interactive shell environments, execute a handful of commands in order, or perform other relatively lightweight chores.

Is it safe to write complex scripts in the C shell?

For this reason, use of the C shell scripting language for writing complex scripts is not recommended. For more information, read “CSH Programming Considered Harmful” at http://www.faqs.org/faqs/unix-faq/shell/csh-whynot/.