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Linux 常用快捷键

Console/terminal

• -- – shuts down computer
• - (, , ,…) – switch to n-th console
• - or - – switch to next/previous virtual terminal
• - – clears command line from cursor position to end of line.
  
  
• - – clears command line from cursor position to beginning of line.
• - – will paste in anything that was deleted by - or -
• - – clears word to the left
• - – moves cursor to beginning of command line.
• – command-line autocompletion. Automatically completes current command line.
  
  

  If autocompletion script is enabled, then also options and applications parameters are autocompleted.

• – locks terminal input/output – allows to read console contents when output is going too fast. To unlock, press Scroll Lock once again.

  Alternatively, Scroll Lock can be enabled using - and disabled with -. Try last shortcut if your console hangs for unknown reason – it happened to me many times that I’ve locked it accidentaly by pressing CTRL-S.

• - and - – scrolls console buffer up/down. Works also when is enabled. After changing the terminal (-) buffer contents is erased and it is impossible to scroll it.
• - – screen refresh
• - or - – kills current task

Kernel shortcuts

Following shortcuts must be enabled in kernel, they also must be enabled using proc interface (echo 1 > /proc/sys/kernel/sysrq).

• -- – sync all mounted filesystem. Data in buffers is immediately written to disks.
• -- – remounts mounted filesystems read-only
• -- – performs immediate reboot. Don’t do it without syncing and unmounting as it can cause massive filesystem corruption
• --, then --, then -- – attempts to sync all mounted filesystems, remounts them read-only and immediately reboots computer. Fastest way to reboot Linux.

X-Windows shortcuts

• -- or ---
  changes screen resolution (higher/lower). Only if X-Windows server is configured for multiple resolutions.
• -- – kill X-server. Running applications will be terminated.
• -- – xkill – click an application to kill it.
• -- (, , ,…) – switches to n-th text console.