Zenity progress - multiple boxes (for each item in loop) when should be 1 box for each loop

[Justme488]

Zenity progress opens up a box for each item in loop, when it should be 1 box for each loop. When you are trying to do something, and the next box pops up, the operation gets cancelled out. The conversion process needs to be in a subshell (could be wrong) i order for zenity progress's cancel button to work. Ideally, a working progress bar "should" fix this. No idea how to accomplish this. If you know how to do this, please submit a pull request. Thanks

[Justme488]

fixed with #4