Frequently-used Bash shell Keyboard shortcuts in Ubuntu

There are a couple of keyboard shortcuts in Ubuntu shell which will save a lot of time if you are comfortable with them.
Delete

• ctrl+d elete the character on the cursor
• ctrl + h : Delete the character before the cursor
• ctrl + k : Delete the character after the cursor
• ctrl + u: Delete all characters before the cursor
• ctrl + w : Delete the word before the cursor
• ctrl + y: Restore the deleted characters by ctrl+u .
• ctrl + ? : Undo the last input
• alt  + r : Undo the last action
• alt  + d : Delete the word after the cursor

Move the cursor

• ctrl + a : Move the cursor to the beginning of the current line.
• ctrl + e : Move the cursor to the end of the current line.
• ctrl + left arrow key: Move the cursor to  the beginning of  last word.
• ctrl+ right arrow key: Move the cursor to the end of  next  word.
• ctrl + f :Move the cursor to the end of current word.

Others:

• alt  + u : Change the current word to capital.
• alt  + l : Change the current word to small letter.
• alt  + c : Change the first letter of current word to capital.
• ctrl + r : Input keywords and search command in history.
• alt  + > : back to the last command.
• ctrl + l : clear current screen,same to “clear” command
• ctrl + o : Run command repeatly.
• alt+number : Run command n times.(n is the number)

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