grep command to search files containing a string

If you plan to use a remote server to follow this guide, we encourage you to first complete our Initial Server Setup guide. Note that this tutorial was validated using a Linux server running Ubuntu 20.04, but the examples given should work on a computer running any version of any Linux distribution. This can either be a virtual private server which you’ve connected to with SSH or your local machine. To follow along with this guide, you will need access to a computer running a Linux-based operating system. In this tutorial, you will explore the grep command’s options, and then you’ll dive into using regular expressions to do more advanced searching. This seemingly trivial program is extremely powerful its ability to sort input based on complex rules makes it a popular link in many command chains. This means that you can use grep to check whether the input it receives matches a specified pattern. The name grep stands for “global regular expression print”. The grep command is one of the most useful commands in a Linux terminal environment.

Grep command to search files containing a string