Linux tty command Learning

About linux tty command learning tty command is used to print the terminal name connected to the standard input. If/dev/console is displayed, this terminal is a console terminal; if/dev/pts/n is displayed, this terminal is a virtual terminal (terminal remotely connected to the linux server ). Check that the return code for tty command execution is 0 and that the standard input is a terminal. Sh-# tty/dev/consolesh-# echo $? 0sh-# tty/dev/pts/6 through the following command, we know that/dev/console is a character device (linux treats almost all devices as files ), sh-# ls-l/dev/consolecrw-r -- 1 root 5, 1 Jan 1/dev/console