Tips for linux and unix are simple but practical.

Tips for linux & amp; unix are simple but practical-Linux general technology-Linux technology and application information. For more information, see the following. You can use the delete key such as C t r l-h, B a c k s p a c e, or d e l e t e to delete the character you just entered. With this character deletion function, you can unspace the entire input line and delete the entered characters if needed. The C t r l-u key deletes the entire row of information.

Then you can enter a new one at the prompt.

I wonder if you have used it.