Bash keyboard shortcuts

01.bash_shortcuts_v2.md

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line
ctrl + e	Goto END of command line
ctrl + b	move back one character
ctrl + f	move forward one character
alt + f	move cursor FORWARD one word
alt + b	move cursor BACK one word
ctrl + xx	Toggle between the start of line and current cursor position
ctrl + ] + x	Where x is any character, moves the cursor forward to the next occurance of x
alt + ctrl + ] + x	Where x is any character, moves the cursor backwards to the previous occurance of x

Edit / Other

command	description
ctrl + d	Delete the character under the cursor
ctrl + h	Delete the previous character before cursor
ctrl + u	Clear all / cut BEFORE cursor
ctrl + k	Clear all / cut AFTER cursor
ctrl + w	delete the word BEFORE the cursor
alt + d	delete the word FROM the cursor
ctrl + y	paste (if you used a previous command to delete)
ctrl + i	command completion like Tab
ctrl + l	Clear the screen (same as clear command)
ctrl + c	kill whatever is running
ctrl + d	Exit shell (same as exit command when cursor line is empty)
ctrl + z	Place current process in background
ctrl + _	Undo
ctrl + x ctrl + u	Undo the last changes. ctrl+ _ does the same
ctrl + t	Swap the last two characters before the cursor
esc + t	Swap last two words before the cursor
alt + t	swap current word with previous
esc + .
esc + _
alt + [Backspace]	delete PREVIOUS word
alt + <	Move to the first line in the history
alt + >	Move to the end of the input history, i.e., the line currently being entered
alt + ?	display the file/folder names in the current path as help
alt + *	print all the file/folder names in the current path as parameter
alt + .	print the LAST ARGUMENT (ie "vim file1.txt file2.txt" will yield "file2.txt")
alt + c	capitalize the first character to end of word starting at cursor (whole word if cursor is at the beginning of word)
alt + u	make uppercase from cursor to end of word
alt + l	make lowercase from cursor to end of word
alt + n
alt + p	Non-incremental reverse search of history.
alt + r	Undo all changes to the line
alt + ctl + e	Expand command line.
~[TAB][TAB]	List all users
$[TAB][TAB]	List all system variables
@[TAB][TAB]	List all entries in your /etc/hosts file
[TAB]	Auto complete
cd -	change to PREVIOUS working directory

History

command	description
ctrl + r	Search backward starting at the current line and moving 'up' through the history as necessary
crtl + s	Search forward starting at the current line and moving 'down' through the history as necessary
ctrl + p	Fetch the previous command from the history list, moving back in the list (same as up arrow)
ctrl + n	Fetch the next command from the history list, moving forward in the list (same as down arrow)
ctrl + o	Execute the command found via Ctrl+r or Ctrl+s
ctrl + g	Escape from history searching mode
!!	Run PREVIOUS command (ie sudo !!)
!vi	Run PREVIOUS command that BEGINS with vi
!vi:p	Print previously run command that BEGINS with vi
!n	Execute nth command in history
!$	Last argument of last command
!^	First argument of last command
^abc^xyz	Replace first occurance of abc with xyz in last command and execute it

Kill a job

n = job number, to list jobs, run jobs

kill %n

Example:

kill %1

References

1. http://cnswww.cns.cwru.edu/php/chet/readline/readline.html
2. https://github.com/fliptheweb/bash-shortcuts-cheat-sheet/blob/master/README.md

Ctrl + s isn't reverse search, it's basically for 'pausing the tty'. Ctrl+q is for resuming said pause.

In that case most likely the underlying OS terminal device receives and interprets the shortcut. stty can be used to disable, e.g. stty -ixon. After disabling it on my GNOME terminal, expected history search is started on Ctrl + s . For more information see https://unix.stackexchange.com/questions/12107/how-to-unfreeze-after-accidentally-pressing-ctrl-s-in-a-terminal

Hi,
I am very impressed, how did you make the figure?
Latex?

Great list, I learned a lot.

One thing I would add:
In addition to !n (which runs the history entry n), you can also do !-n which runs the n-th previous command, e.g. !-2 would run the command that preceded your last command.

Great list, I learned a lot.

One thing I would add: In addition to !n (which runs the history entry n), you can also do !-n which runs the n-th previous command, e.g. !-2 would run the command that preceded your last command.

good to learn that! but isn't pressing up twice easier?

How to discard the current command (not executed yet) and move to a new line without printing anything or deleting the current line?
use case: if I need to copy that line and use it later after executing other commands.

How to discard the current command (not executed yet) and move to a new line without printing anything or deleting the current line? use case: if I need to copy that line and use it later after executing other commands.

You can discard the current command without executing it and move to a new line by using the keyboard shortcut Ctrl+U. This clears the current line but saves it in a buffer, allowing you to paste it back later with Ctrl+Y.

What I find quite confusing is that CTRL + w and ALT + d are not exact opposites of each other.
CTRL + W will delete a space seperated word like word_num_1 word_num_2, while
ALT + d will only delete until the underscores. I wondering if it is configurable that ALT + d behaves the same as CTRL + W or if there is an inbuilt alternative?