Damn Useful: When You Forget to type Sudo

i.e.

  host:test user$ touch one two three four five
  host:test user$ ls
  five	four	one	three	two
  host:test user$ cat four
  host:test user$ echo !!:1
  echo four
  four

i.e.

  host:test user$ cat five
  host:test user$ touch [Esc, .]

When working on a production box, I've trained myself to type the command without sudo, then actually take my hands off the keyboard and sit on my hands while I ponder what might go wrong with the command. Then I hit ^A sudo space return.

No, no, he's got it all wrong. The son then says "Okay, I'll do it in a minute" and proceeds to go back to playing WoW or whatever he does for fun.

^[ k I sudo

Esc (^[ = Esc) exits to command mode, k goes to the previous command, shift-i moves the cursor to the beginning of the line and sudo is well sudo.

Slightly more complex but it is reflex from all of the other programs I use.

http://www.catonmat.net/blog/the-definitive-guide-to-bash-co...