text replacement

The sed (stream editor) command in Unix-like operating systems is a powerful tool for manipulating text in data streams and files. An essential utility for system administrators and programmers, it allows for complex pattern matching, substitution, and more. In this article, we will focus on the specific application of sed for replacing text strings. We’ll cover some practical examples that you can use daily to enhance your work efficiency. Before diving into the examples, let’s understand the basic syntax of the sed command: sed [options] 's/pattern/replacement/[flags]' file Here, s signifies the substitution operation. The pattern is what you intend to replace, and the replacement is the new text you want to insert.