Ubuntu 面试题与答案

问题 11. How do you find the IP address of your Ubuntu system?

You can find the IP address using the 'ifconfig' or 'ip addr' command.

Example:

ifconfig

问题 12. Explain the purpose of the '/etc/passwd' file.

The '/etc/passwd' file contains user account information, including usernames and user IDs.

问题 13. How do you search for a file in Ubuntu using the command line?

You can use the 'find' command to search for files. For example: find /path/to/search -name filename

问题 14. What is the purpose of the 'grep' command?

The 'grep' command is used to search for a specific pattern or text in files.

Example:

grep pattern filename

问题 15. How do you enable the UFW (Uncomplicated Firewall) in Ubuntu?

You can enable UFW with the command: sudo ufw enable