[Linux] Bash reboot uso: Restart the system

The reboot command is used to restart the system immediately or after a specified delay.

Overview

The reboot command is a straightforward way to reboot your Linux system. It can be used by system administrators to restart the machine, either immediately or with a delay, ensuring that all processes are terminated and the system is rebooted cleanly.

Usage

The basic syntax of the reboot command is as follows:

reboot [options] [arguments]

Common Options

• -f : Force the reboot without flushing the file systems.
• -i : Send an interrupt signal to all processes before rebooting.
• -p : Power off the machine after rebooting.
• --help : Display help information about the command.

Common Examples

Here are some practical examples of using the reboot command:

1. Immediate Reboot

   reboot
   

2. Force Reboot

   reboot -f
   

3. Reboot with Power Off

   reboot -p
   

4. Reboot with a Delay

   shutdown -r +5
   

   (This command schedules a reboot in 5 minutes. Note that shutdown is often used for delayed reboots.)

5. Reboot with a Message

   shutdown -r now "System is rebooting for maintenance."
   

   (This sends a message to all users before rebooting.)

Tips

• Always save your work before executing the reboot command to avoid data loss.
• Use the -f option with caution, as it can lead to data corruption if processes are not terminated properly.
• Consider using shutdown for scheduled reboots, as it provides more control over the timing and messaging to users.