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Line Discipline in Unix/Linux Machines
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.Other than Ctrl+c and Ctrl+z which you already know about. Here are some other tricks.
Fire up your terminal. And start typing....
Keyboard Shortcut | Description |
|---|---|
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 ...
Use
/ for continuing the multiline input.bhupesh@dev: hello my name\
is\
bhupesh\
check\
> my boi\
> hoooo\
>
A better version
#!/bin/bash
echo -e "Enter Commit Message (Ctrl+d to stop) : "
commit_message=$(</dev/stdin)
echo -e "\n\n$commit_message"
Make it executable and run.
Enter Commit Message (Ctrl+d to stop) :
- fixed bug #454
- Increase reponse time
- style fixes
- fixed bug #454
- Increase reponse time
- style fixes
All of this is controlled by the
tty driver