<operating system> The UNIX command 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
The new root contains copies of all the essential files and directories, e.g.
/lib, /dev/tty, /tmp.
Christopher Strachey « chromatic number « chrome «
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