[java] Tomcat: How to find out running tomcat version

I'm trying to get Appfuse + tomcat + jRebel working.

Appfuse by default uses Cargo to download tomcat (ver. 7.0.33) and deploy the application to it. I wish to use an already installed tomcat (ver. 7.0.27) instead of the downloaded one. I made the change following the appfuse FAQ.

After deploying with mvn cargo:run, how can I know that the actual running tomcat is indeed 7.0.27?

I used to type a wrong URL (ex. localhost:8080/dfsfsdf) to see it in the error page, but now it shows nothing.

My $CATALINA_HOME points to my own tomcat 7.0.27. sorry forgot to mention, it's for Windows

Update:

Since this question had become somehow popular, I would like to explain why that accepted answer. simple, it was the first one which solved my problem.

looking at the title of the question, @Tech Junkie and @CPU 100 really have the best answer, but not for the scenario I was encountered. (I was wanting to know if mvn cargo:run runs my installed tomcat or a "project embeded" tomcat) :)

The version of currently running Tomcat

If you set the environtment variable - %CATALINA_HOME%, then Windows :

>> cd %CATALINA_HOME%\bin
>> version

Alternatively,

java.exe -cp lib\catalina.jar org.apache.catalina.util.ServerInfo

MY SETTING --- Hope yours will be similar to as follows

%CATALINA_HOME% --- C:\Program Files\Tomcat\apache-tomcat-8.0.28

OUTPUT

Server version: Apache Tomcat/8.0.28 Server built: Oct 7 2015 18:25:21 UTC Server number: 8.0.28.0 OS Name: Windows 7 OS Version: 6.1 Architecture: amd64 JVM Version: 1.8.0_111-b14 JVM Vendor: Oracle Corporation

Windows task manager > Processes > find tomcat > right click > open file location > if you run Tomcat7w.exe it is visible at description.

Tomcat should running to be visible at Processes if not at Windows Vista/7 go to task manager > tab (services) find tomcat start it and then processes.

Open your tomcat home page (Usually localhost:8080)

You will see something like this:

You can find out the server information through its status page:

{running-tomcat-url}/manager/status

On that page you can see the version of Java on which your Tomcat runs

Note: I have also pasted this answer on Tomcat6 and JRE7 compatibility issue. Unsupported major.minor version 51.0

To know exact tomcat version alone, just visit vi tomcat/BUILDING.txt

Though this is not recent, I thought, my answer can still help others:

cd tomcat/lib 
java -cp catalina.jar org.apache.catalina.util.ServerInfo

and that's it.

Server version: Apache Tomcat/7.0.30
Server built:   May 23 2013 02:54:10
Server number:  7.0.30.0
OS Name:        Linux
OS Version:     3.13.0-36-generic
Architecture:   amd64
JVM Version:    1.7.0_65-b32
JVM Vendor:     Oracle Corporation

This one command which you can check almost everything:

java -cp tomcat/lib/catalina.jar org.apache.catalina.util.ServerInfo

or

tomcat/bin/catalina.sh version

And the output looks like this

Server version: Apache Tomcat/8.5.24
Server built:   Nov 27 2017 13:05:30 UTC
Server number:  8.5.24.0
OS Name:        Linux
OS Version:     4.4.0-137-generic
Architecture:   amd64
JVM Version:    1.8.0_131-b11
JVM Vendor:     Oracle Corporation

Enter 404.jsp or non-existent.jsp.

Get Tomcat/JBoss version number at bottom of page.

For Windows PowerShell command-line method of checking running version(s) of Tomcat service:

(get-service Tomcat*).DisplayName

Sample output...

Apache Tomcat 8.5 Tomcat8

If also want to know additional details including the location of folder where service running at:

Get-WmiObject win32_service | Where-Object {$_.Name -like 'Tomcat*'} | select Name, DisplayName, State, PathName

Sample output...

Name    DisplayName               State   PathName
----    -----------               -----   --------
Tomcat8 Apache Tomcat 8.5 Tomcat8 Running "C:\Program Files\Apache Software Foundation\Tomcat 8.5\bin\Tomcat8.exe" /...

We are running in a Windows environment and I had to find a way to get the Tomcat version outside of the Java environment. Without knowing the version, I could not determine the directories. I finally found the best way was to query the Tomcat service using:

C:\temp>sc query | find /I "tomcat"
SERVICE_NAME: Tomcat6
DISPLAY_NAME: Apache Tomcat 6.0 Tomcat6

You can simply open http://localhost:8080/ in your web browser and this will open Tomcat welcome page that shows running Tomcat version like this:

Apache Tomcat/7.0.42

• I assume that your Tomcat is running on port 8080

execute the script in your tomcat/bin directory:

sh tomcat/bin/version.sh

Server version: Apache Tomcat/7.0.42
Server built:   Jul 2 2013 08:57:41
Server number:  7.0.42.0
OS Name:        Linux
OS Version:     2.6.32-042stab084.26
Architecture:   amd64
JVM Version:    1.7.0_21-b11
JVM Vendor:     Oracle Corporation

run the following

/usr/local/tomcat/bin/catalina.sh version

its response will be something like:

Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /var/tmp/
Using JRE_HOME:        /usr
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Using CATALINA_PID:    /var/catalina.pid
Server version: Apache Tomcat/7.0.30
Server built:   Sep 27 2012 05:13:37
Server number:  7.0.30.0
OS Name:        Linux
OS Version:     2.6.32-504.3.3.el6.x86_64
Architecture:   amd64
JVM Version:    1.7.0_60-b19
JVM Vendor:     Oracle Corporation

To find out the Tomcat version, find this file – version.sh for *nix or version.bat for Windows. This version.sh file is normally located in the Tomcat bin folder.

phpmongodb@kumar:/usr/share/tomcat7/bin$ ./version.sh 

Note

If you are not sure where is the version.sh file, try this command :

sudo find / -name "version.sh"

Find out everything about Tomcat7.

sudo find / -name "tomcat7"

Using the release notes

In the main Tomcat folder you can find the RELEASE-NOTES file which contains the following lines (~line 20-21):

                Apache Tomcat Version 8.0.22
                        Release Notes

Or you can get the same information using command line:

• Windows:

  type RELEASE-NOTES | find "Apache Tomcat Version"
  

  Output:

               Apache Tomcat Version 8.0.22
  

• Linux:

  cat RELEASE-NOTES | grep "Apache Tomcat Version"
  

  Output:

               Apache Tomcat Version 8.0.22
  

I have this challenge when working on an Ubuntu 18.04 Linux server.

Here's how I fixed it:

Run the command below to determine the location of your version.sh file:

sudo find / -name "version.sh"

For me the output was:

/opt/tomcat/bin/version.sh

Then, using the output, run the file (version.sh) as a shell script (sh):

sh /opt/tomcat/bin/version.sh

That's all.

I hope this helps

I know it is maybe too late for this, but this could be usefull: If you try to know Apache Tomcat Server version from Java code, you can use:

from a HttpServlet:

protected void doGet(HttpServletRequest request, HttpServletResponse response) {
    getServletContext().getServerInfo()
}

from a ServletContextListener:

public void contextInitialized(ServletContextEvent event)  { 
    event.getServletContext().getServerInfo();      
}

Simply start tomcat and search for "Server version name" in catalina.logs and you will get version of your tomcat. For example:

"Mar 07, 2019 11:25:40 AM org.apache.catalina.startup.VersionLoggerListener log INFO: Server version name: Apache Tomcat/9.0.16"

If Tomcat is installed as a service, try:

sudo /etc/init.d/tomcat version

Swap out "tomcat" with the actual name of the service.

On Windows just cmd

C:\Program Files (x86)\Extensis\Portfolio Server\applications\tomcat\bin>version

1. Try parsing or executing the Tomcat_home/bin directory and look for a script named version.sh or version.bat depending on your operating system.
2. Execute the script ./version.sh or version.bat

If there are no version.bat or version.sh then use a tool to unzipping JAR files (\tomcat\server\lib\catalina.jar) and look in the file org\apache\catalina\util\lib\ServerInfo.properties. the version defined under "server.info=".

For securing Tomcat from hackers, it's recommended that we try a few steps at hiding the tomcat version information. The OWASP project suggests a few steps. https://www.owasp.org/index.php/Securing_tomcat . If a tomcat installation is thus protected, then only 1 of the above answers will show the version of tomcat.
i.e going through the $TOMCAT_HOME\RELEASE-NOTES file where the version number is clearly announced.

I had one such protected server and only the RELEASE-NOTES file revealed the version of the tomcat. all other techniques failed to reveal the version info.

run on terminal of the Unix server

w3m http://localhost:8080/

to quit press q and next y

In Unix-like environments, I also recommend checking the actual running process command line:

$ ps aux | grep java

...
/usr/lib/jvm/java-8-openjdk-amd64/bin/java -Djava.util.logging.config.file=/srv/tomcat-instances/bla/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.awt.headless=true -Xmx4096M -XX:+UseConcMarkSweepGC -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n -Xmx4096m -Xms4096m -XX:MaxPermSize=2048m -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=8090 -Dcom.sun.management.jmxremote.rmi.port=8090 -Djava.rmi.server.hostname=localhost -Djava.endorsed.dirs=/opt/apache-tomcat-8.0.47/endorsed -classpath /opt/apache-tomcat-8.0.47/bin/bootstrap.jar:/opt/apache-tomcat-8.0.47/bin/tomcat-juli.jar -Dcatalina.base=/srv/tomcat-instances/bla -Dcatalina.home=/opt/apache-tomcat-8.0.47 -Djava.io.tmpdir=/tmp/tomcat8-bla-tmp org.apache.catalina.startup.Bootstrap start
...

One can run on subtle weird behaviors due to (operating system) environment variables and (Java) system properties being set to unexpected values. I had a situation where due to an outdated Tomcat setenv.sh, A Tomcat 8 started with classes from a Tomcat 7 on the classpath. Make sure that in the process command line options such as -Dcatalina.base, -Dcatalina.home and -classpath make sense.

In Linux to check the tomcat version

cd /opt/tomcat/bin

./catalina.sh version

For windows machine 
Go to the tomcat directory C:\apache-tomcat-x.0.xx\bin
    bin>version.bat
    Using CATALINA_BASE:   "C:\apache-tomcat-x.0.xx"
    Using CATALINA_HOME:   "C:\apache-tomcat-x.0.xx"
    Using CATALINA_TMPDIR: "C:\apache-tomcat-x.0.xx\temp"
    Using JRE_HOME:        "C:\Program Files\Java\jdk1.8.0_65"
    Using CLASSPATH:       "C:\apache-tomcat-x.0.xx\bin\bootstrap.jar;C:\apache-tomcat-x.0.xx\bin\tomcat-juli.jar"
    Server version: Apache Tomcat/7.0.53





For Linux Machine 
Go to the tomcat directory /usr/mack/apache-tomcat-x.0.xx/bin
    # ./version.sh
    Using CATALINA_BASE:   /usr/mack/apache-tomcat-x.0.xx
    Using CATALINA_HOME:   /usr/mack/apache-tomcat-x.0.xx
    Using CATALINA_TMPDIR: /usr/mack/apache-tomcat-x.0.xx/temp
    Using JRE_HOME:        /usr/java/jdk1.7.0_71/jre
    Using CLASSPATH:       /usr/mack/apache-tomcat-x.0.xx/bin/bootstrap.jar:/usr/mack/apache-tomcat-x.0.xx/bin/tomcat-juli.jar
    Server version: Apache Tomcat/7.0.56

If Tomcat is installed as a service:

#sudo /etc/init.d/tomcat version

Another option is view release notes from tomcat,applicable to linux/window

{Tomcat_home}/webapps/ROOT/RELEASE-NOTES.txt