Linux Commands Reference - Complete Linux Command Guide
Comprehensive Linux command reference with 150+ commands. Search, filter by category, and view detailed usage examples.
grep
Global regular expression search
Syntax
grep [OPTION]... PATTERN [FILE]...Common Options
-iIgnore case distinctions-vInvert match-nPrefix line numbers-rRecursive search-lShow only filenames-cShow only match counts-wMatch whole words only-EUse extended regexCommon Examples
grep "pattern" file.txtSearch pattern in file
grep -r "pattern" /path/Recursive directory search
grep -i "pattern" file.txtCase-insensitive search
grep -v "pattern" file.txtShow non-matching lines
Related Tools
More Code & Dev Tools
Color Converter
Convert between HEX, RGB, HSL color formats. Color picker wi...
CSS Formatter
Format and minify CSS online. Beautify CSS code or compress ...
Git Cheatsheet
Quick reference for common Git commands. Search, copy, and u...
HTTP Status Codes
Reference guide for HTTP status codes. Learn the meaning of ...
Port Checker
Check if a port is open online. Test port availability and c...
CSS Gradient Generator
Generate CSS gradients online. Linear and radial gradients w...
Code Minifier
Minify HTML, CSS, and JavaScript code. Reduce file size by r...
SQL Formatter
Format and beautify SQL queries online. Improve SQL readabil...
Regex Cheatsheet
Quick reference for regular expression patterns. Character c...
Code Formatter
Format and beautify code online. Support multiple languages ...
Color Contrast Checker
Check color contrast ratios for WCAG compliance. Ensure acce...
Color Palette Generator
Generate harmonious color palettes online. Create color sche...