Computer, Electron and Technology

Linux 常用快捷键

Posted by dengwei

-- - 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

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.

-- 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.