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Man Pages


Manual Reference Pages  -  CHROOT (8)

NAME

chroot - change root directory

CONTENTS

Synopsis
Description
Environment
See Also
History

SYNOPSIS

chroot [-u user] [-g group] [-G group,group,...] newroot [command]

DESCRIPTION

The chroot utility changes its current and root directories to the supplied directory newroot and then exec’s command, if supplied, or an interactive copy of the user’s login shell.

If the -u , -g or -G options are given, the user, group and group list of the process are set to these values after the chroot has taken place.

ENVIRONMENT

The following environment variable is referenced by chroot:
SHELL If set, the string specified by SHELL is interpreted as the name of the shell to exec. If the variable SHELL is not set, /bin/sh is used.

SEE ALSO

chdir(2), chroot(2), setgid(2), setgroups(2), setuid(2), getgrnam(3), environ(7), jail(8)

HISTORY

The chroot utility first appeared in BSD 4.4 .
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