Can shell variables be read outside of the shell block while in a script block?

[Idan Adar]

script {
    ...
    ...
    sh """
        X = ...
    """
}

Can X be read directly, outside of the sh block?

Right now I'm echoing X to file (echo X > myfile.txt) and then read the contents of the file (def y = readFile("myfile.txt).trim).

There has to be a better way to do this?

[Robert Hales]

No, you can't set X in the shell and then read it in the script.  Sometimes I will get a variable by cat'ing the file back to the screen in another shell step and capture the stdout in a variable.