转：Linux系统下Shell命令行快捷键实用技巧

# 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
　
　　切到命令行开始｜结尾
　
# Ctrl + L - Clears the Screen， similar to the clear command
　
　　清屏，类似于 clear 命令
　
# Ctrl + U - Clears the line before the cursor position. If you are at the end of the line， clears the entire line.
　
　　清除光标以前
　
# Ctrl + H - Same as backspace
　
　　退格键 backspace
　
# Ctrl + R - Let‘s you search through previously used commands
　
　　从命令历史中找
　
# Ctrl + C - Kill whatever you are running
　
　　终止命令
　
# Ctrl + D - Exit the current shell
　
　　退出 shell
　
# Ctrl + Z - Puts whatever you are running into a suspended background process. fg restores it.
　
　　？？
　
# Ctrl + W - Delete the word before the cursor
　
　　清除光标之前
　
# Ctrl + K - Clear the line after the cursor
　
　　清除光标之后
　
# Ctrl + T - Swap the last two characters before the cursor
　
# Esc + T - Swap the last two words before the cursor
　
　　切换光标前最后两个字母（单词）
　
# Alt + F - Move cursor forward one word on the current line
　
# Alt + B - Move cursor backward one word on the current line
　
　　？？在 ubuntu x windows终端中会切换到菜单！tty 可能可以
　
# Tab - Auto-complete files and folder names
　
　　自动补全
　
# Ctrl + Y - to paste it （as in delete and copy） all text in front of the cursor
　
　　粘贴（刚才 ctrl+w 或者 ctrl+k 的内容）
　
# Esc + . （or Esc + Underscore） - Insert Last Argument
　
　　？？
　
# Ctrl + b - Move back a character
　
　　# Ctrl + f - Move forward a character
　
　　向前｜后移动一个字母
　
# Ctrl + r - Search the history backwards
　
　　？？
　
# Ctrl + xx - Move between EOL and current cursor position
　
　　光标在当前位置和 EOL 之间切换（EOL end of line？但我实验，是在开头和当前位置之间切换，怎么理解？谁知道？）
　
# Ctrl + x @ - Show possible hostname completions
　
# Alt +
　
# Alt + > - Move to the last line in the history
　
# Alt + ？ - Show current completion list
　
# Alt + * - Insert all possible completions
　
# Alt + / - Attempt to complete filename
　
# Alt + . - Yank last argument to previous command
　
# Alt + c - Capitalize the word
　
# Alt + d - Delete word
　
# Alt + l - Make word lowercase
　
# Alt + n - Search the history forwards non-incremental
　
# Alt + p - Search the history backwards non-incremental
　
# Alt + r - Recall command
　
# Alt + t - Move words around
　
# Alt + u - Make word uppercase
　
# Alt + back-space - Delete backward from cursor
　
# Here "2T" means Press TAB twice
　
# $ 2T - All available commands（common）
　
# $ （string） 2T - All available commands starting with （string）
　
# $ /2T - Entire directory structure including Hidden one
　
# $ 2T - Only Sub Dirs inside including Hidden one
　
# $ *2T - Only Sub Dirs inside without Hidden one
　
# $ ~2T - All Present Users on system from "/etc/passwd"
　
# $ $2T - All Sys variables
　
# $ @2T - Entries from "/etc/hosts"
　
# $ =2T - Output like ls or dir