IT-CMDS technician tool
Linux Command Reference
Daily Debian, Ubuntu, Rocky, CentOS and Red Hat commands for technicians.
Linux commands
🧰
Service control
Manage systemd services.
systemctl status nginx
systemctl restart apache2
journalctl -u apache2 -f
💽
Disk usage
Find storage issues.
df -h
du -sh /var/log/*
lsblk
🧠
Performance
Check CPU, memory and processes.
top
htop
free -h
ps aux --sort=-%mem | head
🌐
Network
Validate network connectivity.
ip addr
ip route
ss -tulpn
dig example.com
📦
Packages
Package management.
apt update && apt upgrade
dnf update
yum install package