Ubuntu 面试题与答案

问题 16. What is the purpose of the '/etc/apt/sources.list.d/' directory?

The '/etc/apt/sources.list.d/' directory is used to store additional APT repository configuration files.

问题 17. How do you check the available disk space in Ubuntu?

You can check disk space using the 'df' command. For example: df -h

问题 18. What is the purpose of the 'chmod' command?

The 'chmod' command is used to change the permissions of a file or directory.

Example:

chmod permissions filename

问题 19. How do you install software from source code in Ubuntu?

You can install software from source code using the following commands: ./configure, make, sudo make install

问题 20. Explain the purpose of the 'cron' system in Ubuntu.

The 'cron' system is used for scheduling tasks to run automatically at specified intervals.