linux.md

Linux Scripts

System Management

• Retrieve system information:

  Information	Command
  System information	uname -a
  OS version	cat /etc/os-release
  Hostname	hostnamectl

• Retrieve hardware details:

  Information	Command
  CPU	lscpu
  Memory (RAM)	lsmem
  Storage (block)	lsblk
  PCI devices	lspci

Power Management

• Reboot the system:

  sudo reboot

• Shut down the system:

  sudo poweroff

Process Management

• List running processes:

  ps aux

• Monitor ongoing processes:

  top    # Classic version
  htop   # More modern and interactive version

• Kill a process:

  kill -9 "<PID>"
  

Service Management

• List all services:

  systemctl list-units --type=service

• Check service status:

  systemctl status "<SERVICE>"

• Start/Stop/Restart a service:

  Action	Command
  Start	sudo systemctl start "<SERVICE>"
  Stop	sudo systemctl stop "<SERVICE>"
  Restart	sudo systemctl restart "<SERVICE>"

• Enable/Disable a service on boot:

  Action	Command
  Enable	sudo systemctl enable "<SERVICE>"
  Disable	sudo systemctl disable "<SERVICE>"