Shell Programming and Scripting

**newbie**

I need to review all of our Tomcat setenv.sh jvm heap settings to ensure they are properly set. I attempted to pull the memory configs with an awk - but this was an issue because each file is slightly different, and the position of the memory config is different in each file.

Does anyone have any advice on how to accomplish this (besides manually reviewing each file)?

Ideally, I would like to pull the jvm heap settings & the jvm directory that they are in.

For example, I have /opt/dir1/dir2/dir3 - where dir3 is the specific jvm
and the setenv.sh is in /opt/dir1/dir2/dir3/tomcat/bin/

I would like results along the lines of:

dir3 -Xms1536m -Xmx1536m

Is this possible?

A quick and dirty solution could be something like:

Code:

for appname in A B C
do
   jvm_args=$(grep JAVA_OPTS /opt/dir1/dir2/${appname}/tomcat/bin/setenv.sh | tr ' ' '\n' | grep -E "Xmx|Xms" | tr '\n' ' ')
   echo "${appname} ${jvm_args}"
done

Thank you. I tried this and my output was only appname, no jvm args. For example:

dir3a
dir3b
dir3c

Post your setenv file (sanitised if necessary).

Well, part of the problem is that we have several jvms running, each with their own setenv, so each file can be slightly different, and the placement of the args is different. For example:

setenv1 could look like
CATALINA_OPTS='-Dtarget.env=bcp -server -Xms1024m -Xmx1024m -XX:NewRatio=2 -XX:MaxPermSize=170m

setenv2
CATALINA_OPTS='-server -Xms1536m -Xmx1536m -XX:NewRatio=2 -XX:MaxPermSize=170m'

setenv3
JAVA_OPTS="-Djsse.enableSNIExtension=false"
CATALINA_OPTS='-server -Xms6000m -Xmx6000m -XX:NewRatio=2 -XX:MaxPermSize=1512m

You can just change the grep:

Code:

jvm_args=$(grep -E "JAVA_OPTS|CATALINA_OPTS" /opt/dir1/dir2/${appname}/tomcat/bin/setenv.sh | tr ' ' '\n' | grep -E "Xmx|Xms" | tr '\n' ' ')