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This article mainly shows you how to use the tty command in Linux. The content is simple and easy to understand. It is clearly organized. I hope it can help you solve your doubts. Let Xiaobian lead you to study and learn how to use the tty command in Linux.

The Linux command tty is mainly used to display the file name of the terminal device connected to the current standard input, and print "not a tty" when the standard input is not a terminal.

tty displays the terminal device file name connected to the current standard input

Summary tty [option]... Options-s, --silent, --quiet No information is printed, only the exit state is returned. --help Display help messages and exit. --version Display version information and exit. When-s, --silent, --quiet is used, a return code of 0 indicates that the standard input is terminal, a return code of 1 indicates that the standard input is not terminal, a return code of 2 indicates that the option is incorrect, and a return code of 3 indicates that a write error occurred.

The example shows the terminal device file name connected to the current standard input.

[root@localhost ~]# tty /dev/pts/2 Find the process associated with the terminal (assuming pts/2)

#Note that the filter TTY column. ps -ef | egrep "pts/2 " |grep -v grep Note that this command is in the GNU coreutils package, see man -s 1 tty, info coreutils 'tty invocation' for help.

The above is "Linux tty command how to use" all the content of this article, thank you for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!

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