grep is a command-line utility in Unix/Linux used for searching plain-text data for lines that match a specified pattern. Its primary purposes include:
- Pattern Matching: It searches for specific strings or regular expressions within files or input streams.
- Filtering Output: It can filter the output of other commands by searching for lines that contain a particular pattern.
- Text Processing: It is commonly used in scripts and command pipelines to process and analyze text data.
Basic Usage Example:
grep "search_term" filename.txtThis command searches for "search_term" in filename.txt and prints the matching lines.
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