Extracting a part of the JVM startup command

This  One is used to extract the Catalina base directory from a running TC server process.
This is useful for monitoring what applications are being deployed on those TC instances.

 
[root@khofo05 ~]# ps -ef |grep java|grep 18001
root     20342     1  0 Jan20 ?        00:01:05 /apps/admngop1/springsource/jdk1.6/bin/java -Djava.util.logging.config.file=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001/conf/logging.properties -Xmx512M -Xss192K -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=16001 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.password.file=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001/conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001/conf/jmxremote.access -Djava.util.logging.manager=com.springsource.tcserver.serviceability.logging.TcServerLogManager -Djava.endorsed.dirs=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/tomcat-6.0.35.A.RELEASE/endorsed -classpath /apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/tomcat-6.0.35.A.RELEASE/bin/bootstrap.jar -Dcatalina.base=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001 -Dcatalina.home=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/tomcat-6.0.35.A.RELEASE -Djava.io.tmpdir=/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001/temp org.apache.catalina.startup.Bootstrap start


[root@khofo05 ~]# JAVA_CMD=`ps -ef |grep java|grep 18001`
[root@khofo05 ~]# CATALINA_BASE=`echo ${JAVA_CMD##*Dcatalina.base}|cut -d "=" -f2|cut -d" " -f1`

[root@khofo05 ~]# echo $CATALINA_BASE
/apps/admngop1/springsource/vfabric-tc-server-standard-2.6.3.RELEASE/khofo05_18001
[root@khofo05 ~]#

This would allow to check the webapps folder, the conf and others.
Thought to document the bash string concat constructs, never used it before :)