envgid 1 user commands nosh envgid add GID environment variable then chain envgid groupname next-prog envgid is a chain-loading utility that sets the GID environment variable to the value for groupname in the system groups database and then chain loads to next-prog with the execvp3 function. It unsets the GIDLIST environment variable entirely. If it cannot set the environment variables, or cannot find a group named groupname in the database, it does not chain and exits with status code 111. next-prog may contain its own command line options, which envgid will ignore. The main purpose of envgid is to eliminate the need for a process that has run chroot1 to read from the system groups database. Instead of running a setgid1 command and thus forcing the need for a copy of the system password database inside the changed root environment, a chain runs envgid and can obtain the group information from the environment (or run setgid-fromenv1) later. getuidgid1 envuidgid1 setuidgid-fromenv1 Jonathan de Boyne Pollard