$ cat test
    #!/bin/bash -x
    echo "Hello, World" | sed 's|Hello|Goodbye|'
    echo "Done."

    $ cat test2
    #!/bin/bash
    set -x
    echo "Hello, World" | sed 's|Hello|Goodbye|'
    echo "Done.

    $ ./test
    + echo 'Hello, World'
    + sed 's|Hello|Goodbye|'
    Goodbye, World
    + echo Done.
    Done.

    $ ./test2
    + echo 'Hello, World'
    + sed 's|Hello|Goodbye|'
    Goodbye, World
    + echo Done.
    Done.