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I have a Tomcat 7 server running on Amazon EC2 (OS - Ubuntu 12 LTS). How can I find out which user is running Tomcat on Amazon EC2?

Gaurav Agarwal
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2 Answers2

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Run following command to find out the tomcat process

ps auxwww | grep -v grep | grep tomcat

From there you will find out the tomcat process and from there you can see which user is starting this.

For eg see the following output

vidyadhar@ubuntu:~$ ps auxwww | grep -v grep | grep tomcat
root      1941  0.2  1.7 419224 35208 ?        Sl   Aug12   0:06 /usr/lib/jvm/java-6-sun/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

In above eg 1941 is a tomcat process which is started by root user.

If you want to see all the user run below command

more /etc/passwd
Vidyadhar
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    I recommend piping the output of `ps ...` to `grep -v grep` *before* piping to `grep tomcat` (rather than after). By piping to `grep -v grep` first, you see the helpful highlighting of the matching text, from the `grep tomcat` command (as only the last `grep` command's highlighting is retained). – Eliah Kagan Aug 21 '12 at 07:30
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Using pgrep: look up, signal, or wait for processes based on name and other attributes.

pgrep -fa tomcat
Pablo Bianchi
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