What are alternatives to regular expressions in grep?

Alternatives to regular expressions in grep

This document explores various alternatives to regular expressions (regex) in the grep command, providing insight into other methods for pattern matching and searching through text files in Unix-like operating systems.


        # Example of using grep with basic string matching
        grep "search-term" filename.txt
        
        # Example using -F option for fixed string matching
        grep -F "fixed-string" filename.txt
        
        # Example using -w for whole word matching
        grep -w "exactword" filename.txt
        
        # Example using -o to only match the specific part
        grep -o "partial-match" filename.txt