Setting environment variable with maven 2.x

Is it possible to set environment variable with maven (OS: Linux)?

I already have user-defined properties (in the pom and in profiles.xml)....my problem is, how to execute followi开发者_高级运维ng from Maven

export GGA_FRE=/path

So will be possible, that every developer can set his own path for the GGA_FRE.

This answer is not correct, at least not completely (see comments).
Unfortunately I can't delete it as it has been accepted. Your milage may vary.

Use the exec:exec mojo.

  <plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.1</version>
    <executions>
      <execution>
        <id>exportVar</id>
        <phase>initialize</phase>
        <goals>
          <goal>exec</goal>
        </goals>
      </execution>
    </executions>
    <configuration>
      <executable>export</executable>
      <arguments>
        <argument>GGA_FRE=${my.path}</argument>
      </arguments>
    </configuration>
  </plugin>

now call it like this mvn install -Dmy.path=/var/users/groucho

I don't think there is a Java way to set environment variable the way export command does (so that it is avaliable outside of Java). (see for example this question: How do I set environment variables from Java?)

However, you might hack you way around: for example use maven-exec plugin to run a shell script and then set the variable in the script. You might pass a parameter to your script to specify the variable value. (note that I have not tested this)