When you type a command, pressing the Backspace key should remove the last character. Ctrl-U should delete the line from the cursor to the beginning of the line; thus, this key combination will delete the whole line if the cursor is at the end of the line. When you have finished entering a command, and it is executing, Ctrl-C should abort it, and Ctrl-Z should suspend it. (When you want to resume the suspended program, enter fg for “foreground.”)
Ctrl-S stops the terminal output until you turn it off again with Ctrl-Q. This is probably less useful today, as most terminal emulations provide scrolling facilities anyway, but it’s important to know if you have hit Ctrl-S by accident and the terminal all of a sudden “becomes unresponsive.” Just hit Ctrl-Q to make it respond again; it was just waiting for you.
function is what you want to
key is the key that you press.
Specify a control key by putting a circumflex (^) in front of the
stty erase ^H$
stty kill ^U$
stty intr ^C$
stty susp ^Z
The first control key shown,
^H, represents the ASCII
code generated by the Backspace key.
By the way, you can generate a listing of your current terminal settings by entering stty -a. But that doesn’t mean you can understand the output: stty is a complicated command with many uses, some of which require a lot of knowledge about terminals.
Here is another use of stty that can prove useful quite often: if your shell gets confused (as can often happen if you output binary data to it), and does not react as you are used to, try entering:
That will usually succeed in bringing the shell to reason and making it operate as expected again.