I am reviewing a number of different java programs and am trying to work out how I can update the reference to the program name once only instead of twice. Is there a way to use a variable in a single terminal command? :S
The command I'm trying to improve is of this form:
javac Main.java && java Main
I only want to change the reference to Main once instead of typing it twice each time.
You can do it with one line like this:
PC=com/mycompany/Main && CN=$(echo $PC | tr / .) && javac $PC.java && java $CN
This will work even if you have a package name as it will automatically replace / with . to build properly the full qualified name of your class. In the example above it will compile the class com/mycompany/Main.java then launch com.mycompany.Main
PC: Refers to the relative path of your class without .java, this what you will need to change
CN: Refers to the full qualified name of your class automatically built from the previous path