exclon

## Name

exclon — reserve tty for exclusive use

## Synopsis

`exclon`

## Description

exclon attempts to reserve your terminal for exclusive use. This means that any attempt to open your terminal, including through `/dev/tty`, will fail. excloff attempts to undo the effect of exclon(1).

Exception: `root` can still open your terminal. On most systems this means that talk(1) is not affected by exclon even though write(1) is.

## See also

excloff(1)

  the reverse of this command

## History

exclon was originally part of Daniel J. Bernstein's ptyget toolset in 1996.

## Author

Original code and documentation by Daniel J. Bernstein. Documentation modernizations by Jonathan de Boyne Pollard.