root@infra:/opt/activemq/bin# sudo ./activemq console
INFO: Loading '/opt/activemq//bin/env'
INFO: Using java '/usr/bin/java'
INFO: Starting in foreground, this is just for debugging purposes (stop process by pressing CTRL+C)
INFO: Creating pidfile /opt/activemq//data/activemq.pid
Java Runtime: Oracle Corporation 1.7.0_121 /usr/lib/jvm/java-7-openjdk-amd64/jre
  Heap sizes: current=63488k  free=60783k  max=932352k
    JVM args: -Xms64M -Xmx1G -Djava.util.logging.config.file=logging.properties -Djava.security.auth.login.config=/opt/activemq//conf/login.config -Dcom.sun.management.jmxremote -Djava.awt.headless=true -Djava.io.tmpdir=/opt/activemq//tmp -Dactivemq.classpath=/opt/activemq//conf:/opt/activemq//../lib/: -Dactivemq.home=/opt/activemq/ -Dactivemq.base=/opt/activemq/ -Dactivemq.conf=/opt/activemq//conf -Dactivemq.data=/opt/activemq//data
Extensions classpath:
  [/opt/activemq/lib,/opt/activemq/lib/camel,/opt/activemq/lib/optional,/opt/activemq/lib/web,/opt/activemq/lib/extra]
ACTIVEMQ_HOME: /opt/activemq
ACTIVEMQ_BASE: /opt/activemq
ACTIVEMQ_CONF: /opt/activemq/conf
ACTIVEMQ_DATA: /opt/activemq/data
Usage: Main [--extdir <dir>] [task] [task-options] [task data]

Tasks:

Task Options (Options specific to each task):
    --extdir <dir>  - Add the jar files in the directory to the classpath.
    --version       - Display the version information.
    -h,-?,--help    - Display this help information. To display task specific help, use Main [task] -h,-?,--help

Task Data:
    - Information needed by each specific task.

JMX system property options:
    -Dactivemq.jmx.url=<jmx service uri> (default is: 'service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi')
    -Dactivemq.jmx.user=<user name>
    -Dactivemq.jmx.password=<password>