Text-Processing

The grep command is one of the most widely used tools in Linux for searching text files or streams. Its name stands for “Global Regular Expression Print,” and it allows users to search for patterns in text using simple strings or advanced regular expressions. Whether you’re troubleshooting logs or analyzing data, grep is an essential tool for Linux users of all skill levels.

Basic Syntax of grep

The general syntax for grep is as follows:

The sed command, short for Stream Editor, is one of the most powerful and versatile tools available in the Linux terminal for text processing and manipulation. It allows users to perform basic text transformations on an input stream (a file or input from a pipeline). While it may seem complex at first, once you understand its syntax and capabilities, sed becomes an indispensable tool for working with text files and automating tasks in scripts.