So I'm using Ubuntu 12.04 and having problems with reverse emac search which the CLI uses. Like there's this command I've entered which includes the word "sed" and when I enter alphabets after pressing Ctrl+R it wont let me type more if it has already searched up a workd. In this case it brings "setup" command but I cant enter an "e" after "se". If I try to enter it gives a cpu sound and nothing happens. Help me out, I'm really annoyed with this problem!