Question

Inside my Shell Script , i have this line present

RUN_CMD="$JAVA_HOME/bin/java -cp $CLASSPATH  com/mypack/BalanceRunner 

Could anybody please tell me , what is meant by this command RUN_CMD
and where can i see this RUN_CMD defined

Thanks for reading

Answer 1

That’s defining an environment variable RUN_CMD (looks like a quote omitted at the end, though). It’s shorthand for running that Java command (which defines where to find some classes and then specifies which class to run – BalanceRunner)

The variable is in scope for the current process (a shell, or shell script, most likely). You can see what it’s set to by doing:

echo $RUN_CMD

(note: specifics are shell-dependent but the above is true for Bourne shell derivatives certainly)