Re: [TCLUG:12287] devpts

[<Nick.T.Reinking@supervalu.com>]

devpts has to do with the Unix98 PTY slaves.

According to the Linux kernel documentation: (device.txt)

----------------------
136-143 char        Unix98 PTY slaves
                                     0 = /dev/pts/0                  First 
Unix98 pseudo-TTY
                                     1 = /dev/pts/1                  Second 
Unix98 pseudo-TTY

These devices nodes are automatically generated with the proper 
permissions and modes by mounting the devpts filesystem onto
/dev/pts with the appropriate mount options (distribution dependent).
---------------------

And more:

---------------------
Recent versions of the Linux kernels and GNU libc contain support for
the System V/Unix98 naming scheme for PTYs, which assigns a common
device, /dev/ptmx, to all the masters (opening it will automaticaly give you
a previously unassigned PTY) and a subdirectory, /dev/pts, for the slaves;
the slaves are named with decimal integers (/dev/pts/# in our notation).  This
removes the problem of exhausting the namespace and enables the kernel
to automatically create the device nodes for the slave on demand using the
"devpts" filesystem.
---------------------

Nick Reinking