mvn command not found in OSX Mavrerick

Question

Before marking this as duplicate, I went through these posts, but nothing helped.

• 'mvn' is not recognized as an internal or external command,
• Getting -bash: mvn: command not found,
• Can't access mvn command from command line?

Some are specific to windows and did not help. A couple of them on Mac OS X gave suggestions, that I tried but did not help.

What I tried (this is exactly what Maven suggests):

Extract the distribution archive, i.e. apache-maven-3.1.1-bin.tar.gz to the directory you wish to install Maven 3.1.1. These instructions assume you chose /usr/local/apache-maven. The subdirectory apache-maven-3.1.1 will be created from the archive. In a command terminal, add the M2_HOME environment variable, e.g. export M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1. Add the M2 environment variable, e.g. export M2=$M2_HOME/bin. Optional: Add the MAVEN_OPTS environment variable to specify JVM properties, e.g. export MAVEN_OPTS="-Xms256m -Xmx512m". This environment variable can be used to supply extra options to Maven. Add M2 environment variable to your path, e.g. export PATH=$M2:$PATH. Make sure that JAVA_HOME is set to the location of your JDK, e.g. export JAVA_HOME=/usr/java/jdk1.5.0_02 and that $JAVA_HOME/bin is in your PATH environment variable. Run mvn --version to verify that it is correctly installed.

I see that on the terminal that I used for installation, it works fine. I do not have this issue. but when I tried on a new terminal, I get command not found.

I also added export PATH=$M2 to my .bashrc, I did source and then restarted the terminal, still it did not help.

can someone suggest how to make it available in all sessions of terminal?

Thanks

Answer 1

Try following these if these might help:

Since your installation works on the terminal you installed, all the exports you did, work on the current bash and its child process. but is not spawned to new terminals.

env variables are lost if the session is closed; using .bash_profile, you can make it available in all sessions, since when a bash session starts, it 'runs' its .bashrc and .bash_profile

Now follow these steps and see if it helps:

1. type env | grep M2_HOME on the terminal that is working. This should give something like

   M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1

2. typing env | grep JAVA_HOME should give like this:

   JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home

Now you have the PATH for M2_HOME and JAVA_HOME.

If you just do ls /usr/local/apache-maven/apache-maven-3.1.1/bin, you will see mvn binary there. All you have to do now is to point to this location everytime using PATH. since bash searches in all the directory path mentioned in PATH, it will find mvn.

1. now open .bash_profile, if you dont have one just create one

   vi ~/.bash_profile

Add the following:

#set JAVA_HOME JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home export JAVA_HOME   M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1 export M2_HOME  PATH=$PATH:$JAVA_HOME/bin:$M2_HOME/bin export PATH 

1. save the file and type source ~/.bash_profile. This steps executes the commands in the .bash_profile file and you are good to go now.

2. open a new terminal and type mvn that should work.