The UNIXCommand to make the {root direCtory} (/) beCome something other than its default for the lifetime of the Current proCess. It Can only be run by privileged users and is used to give a proCess (Commonly a network server suCh as FTP or HTTP) aCCess to a restriCted portion of the file system. The new root Contains Copies of all the essential files and direCtories, e.g. /lib, /dev/tty, /tmp. (1996-12-08)