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Whether you’re a beginner or an experienced user, having quick access to essential Linux commands is always a game-changer. From file management and permissions to networking and process control, this Linux Cheat Sheet covers it all!
You Should Know:
File & Directory Management
- List files and directories: `ls -l`
– Create a directory: `mkdir dirname`
– Remove a file: `rm filename`
– Remove a directory: `rm -r dirname`
– Copy a file: `cp sourcefile destinationfile`
– Move a file: `mv sourcefile destinationfile`
User & Process Management
- Display running processes: `ps aux`
– Kill a process: `kill -9 PID`
– Change file permissions: `chmod 755 filename`
– Change file ownership: `chown user:group filename`
Networking & Security Commands
- Check network interfaces: `ifconfig`
– Test network connectivity: `ping google.com`
– Display routing table: `netstat -r`
– Secure shell login: `ssh user@hostname`
Disk & System Monitoring
- Display disk usage: `df -h`
– Display directory space usage: `du -sh dirname`
– Monitor system processes: `top`
– Check memory usage: `free -m`
Text Processing & Automation
- Search for a pattern in a file: `grep ‘pattern’ filename`
– Stream editor for filtering and transforming text: `sed ‘s/old/new/g’ filename`
– Awk pattern scanning and processing language: `awk ‘{print $1}’ filename`
– Schedule tasks: `crontab -e`
What Undercode Say:
Mastering Linux commands is essential for anyone in the IT field, especially for DevOps Engineers and SysAdmins. The commands listed above are just the tip of the iceberg. Regular practice and repetition will help you internalize these commands, making them second nature. For further reading and advanced techniques, consider exploring the official Linux documentation and online resources like Linux Command and The Linux Documentation Project. Keep practicing, and soon you’ll be navigating Linux like a pro!
References:
Reported By: Nitesh Devops – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
