Line Discipline in Unix/Linux Machines
Posted on 06 July, 2020
Line discipline handles things like backspace and also generates various signals for special characters like Ctrl + C/Z etc.
stty -a
will display all these settings. To know more do man ssty
.
Demo
Other than Ctrl+c and Ctrl+z which you already know about. Here are some other tricks.
Fire up your terminal. And start typing....
Ctrl+?
Delete the last input character, Basically Backspace (See what I am talking about, ^? can be used in terminals which may not support the backspace key
Ctrl+q
Erase line, works like carriage return /r
Ctrl+a
Moves cursor to beginning of line
Ctrl+e
Moves cursor to end of line
Ctrl+w
Delete the last input "word"
Ctrl+k
Erase line to the end, from current cursor position
Ctrl+y
Paste the last erased text
Apart from these line input specific keyboard shortcuts. We also have ...
Multiline Input
Use /
for continuing the multiline input.
A better version
Make it executable and run.
All of this is controlled by the tty
driver
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