[root@localhost bin]# ./activemq start

INFO: Loading '/usr/local/activemq//bin/env'

INFO: Using java '/usr/java/jdk1.7.0_55/bin/java'

INFO: Starting - inspect logfiles specified in logging.properties and log4j.properties to get details

INFO: pidfile created : '/usr/local/activemq//data/activemq.pid' (pid '8027')

[root@localhost bin]# ./activemq stop

INFO: Loading '/usr/local/activemq//bin/env'

INFO: Using java '/usr/java/jdk1.7.0_55/bin/java'

ERROR: No or outdated process id in '/usr/local/activemq//data/activemq.pid'

INFO: Removing /usr/local/activemq//data/activemq.pid

[root@localhost bin]#