.th SETUID VIII 5/31/77 .sh NAME setuid \*- set user id of command .sh SYNOPSIS .bd /etc/setuid username [ login-directory ] .br .it "command . . ." .sh DESCRIPTION .it Setuid sets the real and effective user ID of the command that follows to it's argument. It also changes the login .it name and, optionally, the login .it directory. The line following the setuid command is executed by the shell. The user ID then reverts to `root' (the only one who can use this command, after all).