Bash Keyboard Shortcuts

Keyboard Shortcuts

比較完整的在這篇裡面
http://halotis.com/2010/07/06/bash-keyboard-shortcuts/

列一些比較常用的

Moving the cursor

Ctrl + a Go to the beginning of the line (Home)

Ctrl + e Go to the End of the line (End)

Ctrl + p Previous command (Up arrow)

Ctrl + n Next command (Down arrow)

Alt + b Back (left) one word

Alt + f Forward (right) one word

Editing

Ctrl + L Clear the Screen, similar to the clear command

Ctrl + u Cut/delete the line before the cursor position.

Ctrl + k Cut the Line after the cursor to the clipboard.

Alt + backspace Delete the Word before the cursor.

Alt + d   Delete the Word after the cursor.

Ctrl + w Cut the Word before the cursor to the clipboard.

Ctrl + y   Paste the last thing to be cut

Ctrl + t   Swap the last two characters before the cursor (typo).

Alt + t   Swap current word with previous

Alt + u   UPPER capitalize every character to the end of the current word.

Alt + l   Lower the case of every character to the end of the current word.

Alt + / Attempt to complete filename

History

Ctrl + r Search the history backwards.

Ctrl + g Escape from history searching mode

!! Execute last command in history

!abc Execute last command in history beginning with abc

!n Execute n-th command in history

Other

Ctrl + x @ Show possible hostname completions.

Terminal Alt Shortcut Key Problem

Alt activate the menu item

Gnome Terminal 預設按 alt 會切換到 menu item. 但這會造成 Alt+f/Alt+b 無法使用， 如果想要取消這個功能可以在選單 Edit->Keyboard Shortcut 內把
"Enable menu access keys"
"Enable the menu shortcut key"
都移除勾選

Alt+left / Alt+right key  no use

在 Window/Putty 時，沒有這個問題，但在 Gnome Terminal 就出現了這個問題
檢查了一下 Alt+left key 的值， 發現在兩個環境內收到的不一樣!?

在 putty 環境內

# press Alt+left key
$ read
^[^[[D

# press Alt + right key
$ read
^[^[[C

在 gnome terminal 內

# press Alt+left key
$ read                              
^[[1;3D

# press Alt + right key
$ read
^[[1;3C

http://blog.simplicitymedialtd.co.uk/457/making-alt-leftalt-right-work-in-gnome-terminal-like-putty


目前還是不清楚為什麼會有這樣的狀況，但快速解法是修改 /etc/inputrc or ~/.inputrc
以滿足兩個狀況下的 Alt+array key 都能發揮作用

cat .inputrc
# mapping for alt+left-arrow and alt+right-arrow for word moving
"\e[1;3D": backward-word
"\e[1;3C": forward-word
"\e\e[C": forward-word
"\e\e[D": backward-word