The cat command is not limited to just viewing files; it can also be used to create new files and append content to existing ones. By combining cat with the redirection operator >, you can redirect ...

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

There are quite a few ways to merge and sort text files on Linux. The command to choose depends on your data and your preferences.

Common errors with for loops One of the most common errors when using scripts bash on GNU/Linux is to read a file line by line by using a for loop (for line in $ (cat file.txt) do. ..). In this ...