Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
JEXEC(8)		FreeBSD	System Manager's Manual		      JEXEC(8)

NAME
     jexec -- execute a	command	inside an existing jail

SYNOPSIS
     jexec [-u username	| -U username] [-n jailname] jid command ...

DESCRIPTION
     The jexec utility executes	command	inside the jail	identified by either
     jailname or jid or	both.

     If	the jail cannot	be identified uniquely by the given parameters,	an
     error message is printed.	jexec will also	check the state	of the jail
     (once supported) to be ALIVE and ignore jails in other states.  The
     mandatory argument	jid is the unique jail identifier as given by jls(8).
     In	case you only want to match on other criteria, give an empty string.

     The following options are available:

     -n	jailname
	     The name of the jail, if given upon creation of the jail.	This
	     is	not the	hostname of the	jail.

     -u	username
	     The user name from	host environment as whom the command should
	     run.

     -U	username
	     The user name from	jailed environment as whom the command should
	     run.

SEE ALSO
     jail_attach(2), jail(8), jls(8)

HISTORY
     The jexec utility was added in FreeBSD 5.1.

BUGS
     If	the jail is not	identified by jid there	is a possible race in between
     the lookup	of the jail and	executing the command inside the jail.	Giving
     a jid has a similar race as another process can stop the jail and start
     another one after the user	looked up the jid.

FreeBSD	9.2		       November	29, 2008		   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | BUGS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=jexec&sektion=8&manpath=FreeBSD+7.2-RELEASE>

home | help