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July 4, 2013 17:12
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List of Terminal shortcuts
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Ctrl + A Go to the beginning of the line you are currently typing on | |
Ctrl + E Go to the end of the line you are currently typing on | |
Ctrl + L Clears the Screen, similar to the clear command | |
Ctrl + U Clears the line before the cursor position. If you are at the end of the line, clears the entire line. | |
Ctrl + H Same as backspace | |
Ctrl + R Let’s you search through previously used commands | |
Ctrl + C Kill whatever you are running | |
Ctrl + D Exit the current shell | |
Ctrl + Z Puts whatever you are running into a suspended background process. fg restores it. | |
Ctrl + W Delete the word before the cursor | |
Ctrl + K Clear the line after the cursor | |
Ctrl + T Swap the last two characters before the cursor | |
Esc + T Swap the last two words before the cursor |
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Oh, also, ctrl-D... that works by sending the EOF character which signifies end of input. This is useful not only for when you're in a shell, but for anything that's waiting on input, be it an interactive database session (
mysql
orpsql
), or acat
command. It's friendlier than a ctrl-C since that sends an interrupt signal.An example of the
cat
thing above:you can then type some stuff in, press enter, type more, press enter... type some more, press enter... seems like it's doing nothing... type a ctrl-D and you're brought back to your prompt. Now look at the contents of
some_file
and it'll contain everything you just typed. If you ctrl-C, it'll do the same, but only because that's how thecat
command is written (it outputs data each time it gets a line), but if it were to buffer everything and only write once input is completed, ctrl-C would completely terminate the action and nothing would occur. When you pipe the output of a command into another, when the first command finishes, it sends the EOF to signal the next process that it's done. ctrl-D is a way for you, the operator, to do this manually.