The shell has structures for testing conditions and executing certain program sequences several times (loop), until the tested condition is…
An important feature of shell scripts is the possibility of confirming execution with success of a given command. Special return…
The test command is a great tool for testing conditions. Based on the return variable of the test command, programming…
The jq command is indispensable for manipulating data in JSON format, such as indenting, sorting, compressing, and displaying JSON keys.…
What is shell script? This may be a fairly common question for those who are starting out on the Linux…
Let's be serious. Get the kids out of the classroom. If you don't know a lot about regular expressions on…
Linux has several tools for working with and transforming text files. These tools are called text filters and are useful…
The history command is used to list the contents of the ~/. bash_history of the logged in user, and lists…
Working with variables in the Linux Shell is essential for any system administrator, since they together with some commands give…
The awk command in Linux is a powerful tool that allows you to process texts and make changes to files.…
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