Top 50 Linux Commands Every DevOps Engineer Must Know (2026)

Top 50 Linux Commands Every DevOps Engineer Must Know

Working as a DevOps engineer means living in the terminal.
Here are the most important Linux commands you must know.

File Operations

• ls -la — List all files with details
• find / -name "*.log" — Find files by name
• chmod 755 script.sh — Set permissions
• chown user:group file — Change ownership

Process Management

• ps aux — List all processes
• top — Live process monitor
• kill -9 PID — Force kill process
• nohup command & — Run after logout

Networking

• ss -tulnp — Show listening ports
• curl -v https://api.example.com — HTTP request
• ssh -i key.pem user@host — SSH with key
• scp file.txt user@host:/path — Secure copy

Log Monitoring

• tail -f /var/log/syslog — Follow logs live
• grep -r "error" /var/log/ — Search in logs
• journalctl -u nginx -f — Service logs

...and 35 more at 👇

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DevOps #Linux #SysAdmin #CloudComputing