Linux System Administration
Filesystems
Special Purpose Filesystems
devpts
The
devpts
file system provides an interface to pseudo terminal (
pty
) devices.
A pseudo-terminal device is a terminal device that does not have a physical terminal associated with it.
consoles, shells
At mount time, a user identity, group identity, and mode can be specified for all pty files in the
devpts
file system.
Typically, this feature is used to set the group and mode to allow write access by programs that are setgid to the
tty
group.
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