82 lines
3.9 KiB
Markdown
82 lines
3.9 KiB
Markdown
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---
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title: 'Bash Shortcuts'
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published: true
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private: false
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date: '17:04 10-04-2018'
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creator: erreur32
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---
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**Bash Shortcuts**
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Ctrl + a – go to the start of the command line
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Ctrl + e – go to the end of the command line
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Ctrl + k – delete from cursor to the end of the command line
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Ctrl + u – delete from cursor to the start of the command line
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Ctrl + w – delete from cursor to start of word (i.e. delete backwards one word)
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Ctrl + y – paste word or text that was cut using one of the deletion shortcuts (such as the one above) after the cursor
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Ctrl + xx – move between start of command line and current cursor position (and back again)
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Alt + b – move backward one word (or go to start of word the cursor is currently on)
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Alt + f – move forward one word (or go to end of word the cursor is currently on)
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Alt + d – delete to end of word starting at cursor (whole word if cursor is at the beginning of word)
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Alt + c – capitalize to end of word starting at cursor (whole word if cursor is at the beginning of word)
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Alt + u – make uppercase from cursor to end of word
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Alt + l – make lowercase from cursor to end of word
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Alt + t – swap current word with previous
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Ctrl + f – move forward one character
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Ctrl + b – move backward one character
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Ctrl + d – delete character under the cursor
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Ctrl + h – delete character before the cursor
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Ctrl + t – swap character under cursor with the previous one
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Command Recall Shortcuts
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Ctrl + r – search the history backwards
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Ctrl + g – escape from history searching mode
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Ctrl + p – previous command in history (i.e. walk back through the command history)
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Ctrl + n – next command in history (i.e. walk forward through the command history)
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Alt + . – use the last word of the previous command
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Command Control Shortcuts
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Ctrl + l – clear the screen
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Ctrl + s – stops the output to the screen (for long running verbose command)
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Ctrl + q – allow output to the screen (if previously stopped using command above)
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Ctrl + c – terminate the command
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Ctrl + z – suspend/stop the command
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Bash Bang (!) Commands
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Bash also has some handy features that use the ! (bang) to allow you to do some funky stuff with bash commands.
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!! – run last command
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!blah – run the most recent command that starts with ‘blah’ (e.g. !ls)
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!blah:p – print out the command that !blah would run (also adds it as the latest command in the command history)
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!$ – the last word of the previous command (same as Alt + .)
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!$:p – print out the word that !$ would substitute
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!* – the previous command except for the last word (e.g. if you type ‘find some_file.txt /‘, then !* would give you ‘find some_file.txt‘)
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!*:p – print out what !* would substitute
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There is one more handy thing you can do. This involves using the ^^ ‘command’. If you type a command and run it, you can re-run the same command but substitute a piece of text for another piece of text using ^^ e.g.:
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```bash
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$ ls -al
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total 12
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drwxrwxrwx+ 3 Administrator None 0 Jul 21 23:38 .
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drwxrwxrwx+ 3 Administrator None 0 Jul 21 23:34 ..
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-rwxr-xr-x 1 Administrator None 1150 Jul 21 23:34 .bash_profile
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-rwxr-xr-x 1 Administrator None 3116 Jul 21 23:34 .bashrc
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drwxr-xr-x+ 4 Administrator None 0 Jul 21 23:39 .gem
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-rwxr-xr-x 1 Administrator None 1461 Jul 21 23:34 .inputrc
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$ ^-al^-lash
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ls -lash
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total 12K
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0 drwxrwxrwx+ 3 Administrator None 0 Jul 21 23:38 .
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0 drwxrwxrwx+ 3 Administrator None 0 Jul 21 23:34 ..
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4.0K -rwxr-xr-x 1 Administrator None 1.2K Jul 21 23:34 .bash_profile
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4.0K -rwxr-xr-x 1 Administrator None 3.1K Jul 21 23:34 .bashrc
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0 drwxr-xr-x+ 4 Administrator None 0 Jul 21 23:39 .gem
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4.0K -rwxr-xr-x 1 Administrator None 1.5K Jul 21 23:34 .inputrc
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```
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Here, the command was the ^-al^-lash which replaced the –al with –lash in our previous ls command and re-ran the command again.
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