Ultimately, I want this to run from a .desktop launcher, but initial experiments fail - using Exec=script1 in the desktop entry makes a terminal window flash up then close, instantly. Previously I've used bash -c "cmd1 && cmd2 &&..." in Lubuntu, but bash is throwing an error here. Intuitively, I guess that's because I removed 'bash' from the shebang, but see problem 1., above.