This is great. Is there an easy "open source terminal emulator" where I can run this after I typed enter but before it is executed? More like. is there a way the terminal can understand I typed a bad command and then give suggestions for changing it.
GNU Emacs has a module called eshell-smart that borrows from Plan 9's 9term.
When you run a command it moves the cursor (point in Emacs) to the beginning of the line and shows output below it.
If you start typing it jumps to a new prompt allowing you to enter a separate command.
If instead you move right from the beginning of the line it sees you are correcting/tweaking the command and doesn't jump to a new line when you type something.
If you press space it acts like a pager.
It's pretty neat because it allows you to review the output without getting in the way.
Damn, imagine working at a place where at the end of each day, the management goes through your shell history and includes it in a "performance review".
https://github.com/nvbn/thefuck