Linux is not just an OS
It is your foundation for real troubleshooting and automation
Here are commands I still use all the time
And how they help when things break
π ls β list files
πΆcd β move between folders
πΊοΈ pwd β see where you are
π touch β create empty files
π mkdir β make new directories
ποΈ rm β delete old logs and junk
π¦ cp β copy files safely
π mv β move or rename files
π± cat β read configs fast
π grep β search logs for errors
π chmod β fix permissions
π¦Έ sudo β run as root when you must
π ps β check what is running
π top β monitor CPU and memory live
π df β check disk space
π ifconfig / ip addr β view network settings
π ping β test connectivity
π ssh β connect to remote servers
π¦ tar β compress backups
π man β read the manual when stuck
π§© ππΌπΊπ―πΆπ»π² ππ΅π²πΊ ππΌπΌ
ps aux | grep nginx β find processes
tar czf backup.tar.gz /etc && scp backup.tar.gz server β quick backup and copy
Save these and you will script faster
Troubleshoot production with confidence
And stay calm when things go sideways at 3am
π§ What is your most used Linux command? Share it below π