.TH FS 1 .SH NAME fs \- invoke server side of Xinu remote file system .SH SYNOPSIS .B fs [ \f3\-p\f1port ] .SH DESCRIPTION .I Fs invokes the Xinu remote file system server on a \s-2UNIX\s0 host. The server executes with permissions set to that of the invoking user, or user ``xinu'' if it is able to change user id. Typically, the host machine invokes \f2fs\f1 at system startup, making it available always. .PP Option \f3\-p\f1 allows the user to specify a \f2UDP\f1 port number to which the server will respond. If \f3\-p\f1 is omitted, \|\f2fs\f1 uses a default port number. Thus, it is possible to have several versions of the server in use simultaneously, with each version using a unique UDP port. .PP When started, \f2fs\f1 forks a child in background to become the file server. The background process executes forever, but the foreground process exits. Thus, the \f2fs\f1 command appears to complete instantly even though the server is still executing.