The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

8.6 Starting a Command Inside a Running Container

Note

The lxc-attach command is supported by UEK R3 with the lxc-0.9.0-2.0.4 package or later.

You can use lxc-attach to execute an arbitrary command inside a container that is already running from outside the container, for example:

[root@host ~]# lxc-attach -n ol6ctr1 -- ps aux

For more information, see the lxc-attach(1) manual page.