Administrative Tasks

Linux Tutorials - Herong's Tutorial Examples

∟Administrative Tasks

This chapter provides introductions and tutorial on Linux administrative task. Topics include shutting down and restarting system, moving /home to new partition, moving all users to a new system.

"systemctl status/start/stop/enable/disable" Commands

"shutdown" and "halt/poweroff/reboot" Commands

Move /home Directory to New Partition

Move All Users to a New System

"last/lastb" - Review Login History

Takeaways:

Use "systemctl" command to interact with "systemd", the system and service manager.
Use "shutdown" command to shutdown or reboot Linux systems.
Use "cp -aR" command to copy directories with all properties preserved. Better than "rsync -av", which does not preserve SELinux security properties.
For a GPT partition, you need to use its UUID in the /etc/fstab to mount it.
User information stored in /etc/passwd, /etc/shadow, /etc/group and /etc/gshadow can be moved from one system to another, as long as there is no user id and group id collision.