How to Write and Run Scripts in the Windows PowerShell ISE
Tutorial - Write a Shell in C • Stephen Brennan
With the thousands of commands available to the command line user, how can we remember them all? The answer is, we don't. The real power of the computer is its ability to do the work for us. To get it to do that, we use the power of the shell to automate things. We write shell scripts. In the simplest terms, a shell script is a file containing a series of commands.
Tutorial - Write a Shell in C
In a programming or scripting language, Bash offers several ways to repeat code—a process called looping—where a for loop repeats a certain section of the code. This allows a series of commands to run until a particular condition is met. In this guide, we show you how to write a Bash for Loop. Scripting languages such as Bash feature similar programming constructs as other languages.
That is, you can do some complicated things with shell scripts, but you can get there over time. If you know how to run commands at the command line, you can learn to write simple scripts in just 10 minutes. All you need is a text editor and an idea of what you want to do. Start small and use scripts to automate small tasks.