If you have written a really long command, say cd /very/long/path, and then you do ctrl+c or ctrl+u (if the cursor is at the end), and then you realise that you want the command back, is there any way to get the full line back without re-typing. Is there any trick to change .bashrc so that bash_history keep track of keys pressed on the shell and not just after the enter is hit.
I have answered a question at In bash, how does one clear the current input? and realised if we have some option like this it would be very helpful.
To undo, use either
See
bind -Pfor a full list of keybindings inbash.