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chroot(8) [bsd man page]

CHROOT(8)						      System Manager's Manual							 CHROOT(8)

NAME
chroot - change root directory SYNOPSIS
chroot newroot [ command ] DESCRIPTION
The chroot command changes its root directory to the supplied directory newroot and exec's command, if supplied, or an interactive copy of your shell (as specified by the environmental variable SHELL) if not. /bin/sh is used if SHELL is not specified. Note, command or the shell are run as your real-user-id. SEE ALSO
chdir(2), chroot(2), environ(7) 4.3 Berkeley Distribution December 5, 1988 CHROOT(8)

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CHROOT(8)						    BSD System Manager's Manual 						 CHROOT(8)

NAME
chroot -- change root directory SYNOPSIS
chroot [-u -user] [-g -group] [-G -group,group,...] newroot [command] DESCRIPTION
The chroot command changes its root directory to the supplied directory newroot and exec's command, if supplied, or an interactive copy of your 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. See setgid(2), setgroups(2), setuid(2), getgrnam(3) and getpwnam(3). Note, command or the shell are run as your real-user-id. 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), environ(7) HISTORY
The chroot utility first appeared in 4.4BSD. SECURITY CONSIDERATIONS
chroot should never be installed setuid root, as it would then be possible to exploit the program to gain root privileges. 4.3 Berkeley Distribution October 6, 1998 4.3 Berkeley Distribution

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