Daily Heroes:
\u2022 ps aux | grep {process} – Find that sneaky process
\u2022 lsof -i :{port} – Who’s hogging that port?
\u2022 df -h – The classic “we’re out of space” checker
\u2022 netstat -tulpn – Network connection detective
\u2022 kubectl get pods | grep -i error – K8s trouble finder<\/p>\n\n\n\n
Log Warriors:
\u2022 tail -f \/var\/log\/* – Real-time log watcher
\u2022 journalctl -fu service-name – SystemD log stalker
\u2022 grep -r “error” . – The error hunter
\u2022 zcat access.log.gz | grep “500” – Compressed log ninja
\u2022 less +F – The better tail command<\/p>\n\n\n\n
Container Whisperers:
\u2022 docker ps –format ‘{{.Names}} {{.Status}}’ – Clean status check
\u2022 docker stats –no-stream – Quick resource check
\u2022 crictl logs {container} – Raw container stories
\u2022 docker exec -it – The container backdoor
\u2022 podman top – Process peek inside containers<\/p>\n\n\n\n
System Detectives:
\u2022 htop – System resource storyteller
\u2022 iostat -xz 1 – Disk performance poet
\u2022 free -h – Memory mystery solver
\u2022 vmstat 1 – System vital signs
\u2022 dmesg -T | tail – Kernel’s recent gossip<\/p>\n\n\n\n
Network Ninjas:
\u2022 curl -v – HTTP conversation debugger
\u2022 dig +short – Quick DNS lookup
\u2022 ss -tunlp – Socket statistics simplified
\u2022 iptables -L – Firewall rule reader
\u2022 traceroute – Path finder<\/p>\n\n\n\n
File Jugglers:
\u2022 find . -name “*.yaml” -type f – YAML hunter
\u2022 rsync -avz – Better file copier
\u2022 tar -xvf – The unzipper (yes, we all google this)
\u2022 ln -s – Symlink wizard
\u2022 chmod +x – Make it executable<\/p>\n\n\n\n
Performance Profilers:
\u2022 strace -p {pid} – System call spy
\u2022 tcpdump -i any – Network packet sniffer
\u2022 sar -n DEV 1 – Network stats watch
\u2022 uptime – Load average at a glance
\u2022 top -c – Classic process viewer<\/p>\n\n\n\n
Git Essentials:
\u2022 git log –oneline – History simplified
\u2022 git reset –hard HEAD^ – The “oops” eraser
\u2022 git stash – The work hider
\u2022 git diff –cached – What’s staged?
\u2022 git blame – The “who did this?” resolver<\/p>\n\n\n\n
Quick Fixes:
\u2022 sudo !! – Run last command with sudo
\u2022 ctrl+r – Command history search
\u2022 history | grep – Command time machine
\u2022 alias – Command shortcut maker
\u2022 watch – Command repeater<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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