NAME

jps —

prints processes running in a jail

SYNOPSIS

jps -i jail

jps jail [ps-options ...]

DESCRIPTION

The jps utility prints out a list of the processes running in a given jail. When run with the -i argument it just prints out the process ids. Otherwise it prints out a full ps(1) type listing for the processes in the jail. The ps(1) formatting and other options are available for use.

OPTIONS

-i: Only print out the process ids.
jail: Either a jail id (which is an integer) or a jail host name.
ps-options: Formatting and other to be passed to ps(1) when listing processes in the jail.

NOTES

It is possible to run two jails with the same host name. jps however always only prints out processes for one jail.

The environment is purged properly before running ps(1) in the jail in order to prevent unwanted information from leaking into the jail.

jps needs a valid /dev/null device in the jail. If it doesn't exit for some reason it is automatically created.

AUTHOR

Stef Walter ⟨stef@memberwebs.com⟩