Linux Commands Every DevOps Engineer Should Have in Their Back Pocket

The article introduces essential Linux commands that every DevOps engineer should know to automate and streamline their daily tasks efficiently.

One of the best Linux cheat sheets to have for all the DevOps work to automate their daily tasks.

System Intelligence:

• htop - Like top, but actually useful
• df -h - Because disk space issues find you
• netstat -tulpn - Your network's story
• lsof - What's using that port?
• ps aux | grep - Finding that runaway process
• dmesg - Kernel's gossip channel

File Operations:

• find . -name - Your file search superhero
• tar -xvf - Unzip like a pro
• rsync - scp's smarter cousin
• sed -i - Stream editing wizard
• awk - Text manipulation magic
• grep -r - Find text like a detective

Container Life:

• docker stats - Container vital signs
• docker logs -f - Live container stories
• crictl pods - Kubernetes container whisperer
• kubectl get pods - K8s status check

Monitoring Magic:

• tail -f - Log watching party
• watch - Command on repeat
• vmstat - Memory tales
• iostat - Disk performance poetry

Network Ninja:

• curl -v - HTTP storyteller
• nc - Network swiss army knife
• dig - DNS detective
• ss - Socket statistics

Security Stuff:

• chmod - Permission painter
• chown - Ownership wizard
• openssl - Certificate craftsman
• ssh-keygen - Key creator

Process Control:

• systemctl - Service sorcery
• journalctl - Log time machine
• kill -9 - Process terminator
• nice - Priority painter

Performance Profiling:

• strace - System call spy
• tcpdump - Network packet poet
• sar - System activity reporter
• perf - Performance profiler

Text Wrangling:
• cut -d - Column collector
• sort | uniq -c - Pattern finder
• tr - Character changer
• wc -l - Line counter

File System:

• du -sh - Directory size detective
• fdisk -l - Disk detective
• mount - filesystem connector
• ln -s - Symlink sorcerer

Shell Shortcuts:

• history | grep - Command time machine
• !! - Last command replay
• ctrl+r - Reverse search magic
• alias - Command shortcut creator

Miscellaneous Mastery:

• tee - Output splitter
• xargs - Command multiplier
• at - Job scheduler
• screen/tmux - Terminal multiplexer

Stay tuned for more such cheat sheets of DevOps!

Disclaimer: The views expressed herein are for reference only and don't necessarily represent the official views of Alibaba Cloud.

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Linux Commands Every DevOps Engineer Should Have in Their Back Pocket

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