Learn the Most Important Linux Commands for Real World Usage
Linux Commands are instructions used to interact with the Linux Operating System through the Terminal.
pwd ls ls -l ls -a cd cd .. cd /
touch file.txt cp file1 file2 mv file1 file2 rm file.txt mkdir test rmdir test
cat file.txt more file.txt less file.txt head file.txt tail file.txt tail -f logfile.log
find / -name file.txt locate file.txt grep network file.txt which ping whereis ssh
whoami id passwd useradd test userdel test groupadd network
uname -a hostname date uptime free -m df -h du -sh
ping 8.8.8.8 ifconfig ip addr ip route netstat -an ss -tuln traceroute google.com nslookup google.com
ps ps -ef top htop kill PID kill -9 PID
chmod 755 file.sh chmod 777 file.sh chown user file.txt chgrp group file.txt
apt update apt upgrade yum update dnf update
systemctl status ssh systemctl start ssh systemctl stop ssh systemctl restart ssh
✔ Server Administration
✔ Network Monitoring
✔ Telecom Systems
✔ Cloud Infrastructure
✔ Cyber Security
✔ Data Centers
What is pwd command?
Difference between cp and mv?
What is grep?
How to check IP Address in Linux?
How to kill a process?
What is chmod?
What is systemctl?
How to view running processes?
Difference between top and ps?
How to check disk usage?
Linux Commands are the foundation of Linux Administration, Networking, Cloud Computing and Cyber Security.
Mastering these commands will help you become a System Administrator, Network Engineer or DevOps Professional.