Originally Posted by fxbszj
I just installed Redhat, but I found VI editor can't edit documents. When I press the backspace key, it can't delete any word, just move the cursor. Also I can't write any word.
What should I do now?
You're in command mode (key presses tell it to do special things, like string search, copy, paste, etc). Press 'i' to go to insert mode, then you can type and backspace like normal. When you're done, press the Esc key to go back to command mode.
As grail said, find a VI tutorial online, it has a bit of a learning curve.