what is /dev/vc ?
在Document/filesystems/proc.txt中: To see which tty's are currently in use, you can simply look into the file /proc/tty/drivers: 在我的机器上: $cat /proc/tty/drivers /dev/tty /dev/tty 5 0 system:/dev/tty /dev/console /dev/console 5 1 system:console /dev/ptmx /dev/ptmx 5 2 system /dev/vc/0 /dev/vc/0 4 0 system:vtmaster rfcomm /dev/rfcomm 216 0-255 serial ttyprintk /dev/ttyprintk 5 3 console serial /dev/ttyS 4 64-111 serial pty_slave /dev/pts 136 0-1048575 pty:slave pty_master /dev/ptm 128 0-1048575 pty:master unknown /dev/tty 4 1-63 console vc是什么东东呢: In Linux the PC monitor is usually called the console and has several device special files associated with it: vc/0 (tty0), vc/1 (tty1), vc/2 (tty2), etc. When you log in you are on vc/1. To go to vc/2 (on the same screen) press down the 2