EXPORT(4) EXPORT(4)
NAME
export, 9export - export name space on a connection
SYNOPSIS
export [ -a ] [ -n ] dir [ file ]
9export dir
DESCRIPTION
Export calls Sys->export (see sys-dial(2)) to serve a name
space rooted at dir over a connection to a Styx client.
Export opens the connection on the given file, or uses the
standard input by default. It returns when the client
closes the connection. If the -a option is given, however,
export starts an Inferno kernel process to serve the name
space and returns immediately.
Normally, export forks the current name space, and makes dir
the root of its copy. Changes subsequently made to the cur-
rent name space will not be visible to clients of export. If
the -n option is given, however, and dir is the root (`/'),
export serves the current name space without forking it;
changes made to it will be visible to clients.
Export starts serving Styx immediately; it assumes that the
connection has been authenticated if required.
9export serves the name space rooted at dir over standard
input and output to a 9P client; 9P is Plan 9's variant of
Styx, defined in section 5 of the Plan 9 Manual. No Plan 9
authentication is performed, and the Tclwalk message is
unimplemented.
EXAMPLE
Start a background process to serve the name space on the
serial port.
export / /dev/eia0 &
Although useful when bootstrapping a system, this is unsafe
unless a transport protocol is run on the connection.
SOURCE
/appl/cmd/export.b
SEE ALSO
cpu(1), sys-dial(2), intro(5)
intro(5) in Plan 9 Programmer's Manual: Volume 1
Page 1 Plan 9 (printed 3/13/25)