The Only Linux Command List You’ll Need to Bookmark
Daily Heroes:
• ps aux | grep {process} – Find that sneaky process
• lsof -i :{port} – Who’s hogging that port?
• df -h – The classic “we’re out of space” checker
• netstat -tulpn – Network connection detective
• kubectl get pods | grep -i error – K8s trouble finder
Log Warriors:
• tail -f /var/log/* – Real-time log watcher
• journalctl -fu service-name – SystemD log stalker
• grep -r “error” . – The error hunter
• zcat access.log.gz | grep “500” – Compressed log ninja
• less +F – The better tail command
Container Whisperers:
• docker ps –format ‘{{.Names}} {{.Status}}’ – Clean status check
• docker stats –no-stream – Quick resource check
• crictl logs {container} – Raw container stories
• docker exec -it – The container backdoor
• podman top – Process peek inside containers
System Detectives:
• htop – System resource storyteller
• iostat -xz 1 – Disk performance poet
• free -h – Memory mystery solver
• vmstat 1 – System vital signs
• dmesg -T | tail – Kernel’s recent gossip
Network Ninjas:
• curl -v – HTTP conversation debugger
• dig +short – Quick DNS lookup
• ss -tunlp – Socket statistics simplified
• iptables -L – Firewall rule reader
• traceroute – Path finder
File Jugglers:
• find . -name “*.yaml” -type f – YAML hunter
• rsync -avz – Better file copier
• tar -xvf – The unzipper (yes, we all google this)
• ln -s – Symlink wizard
• chmod +x – Make it executable
Performance Profilers:
• strace -p {pid} – System call spy
• tcpdump -i any – Network packet sniffer
• sar -n DEV 1 – Network stats watch
• uptime – Load average at a glance
• top -c – Classic process viewer
Git Essentials:
• git log –oneline – History simplified
• git reset –hard HEAD^ – The “oops” eraser
• git stash – The work hider
• git diff –cached – What’s staged?
• git blame – The “who did this?” resolver
Quick Fixes:
• sudo !! – Run last command with sudo
• ctrl+r – Command history search
• history | grep – Command time machine
• alias – Command shortcut maker
• watch – Command repeater
