Shell scripting

Check if a directory or file exists

How to check if a directory or file exists within a shell script? This can be achieved by using an operator of the test command.

Strip one or more characters from a variable or output

Want to delete one or more characters from a variable or piped output? There are multiple ways to achieve this using standard system utilities.

Making scripts (more) secure and safe

When you create a shell script, many things can go wrong. With a few basics you can catch errors easier and at the same time make your scripts (more) fail-safe.

Prompt for user input in a shell script

How to prompt users in your shell script, like asking answer Yes or No? In this article we look at options to achieve this.

5 things you didn’t know about shell scripting

Shell scripting doesn't have to be boring. Let's look at a few common things that many don't know about about shell scripts.