Custom output directory, create sub directories?

[branflake2267]

Do you expect the output directory to exist or could you create the output directory when specified if it does not exist?

For instance:
mkdir -p target/guider

[nene]

The output dir gets created if it doesn't exist. But if the parent of output dir doesn't exist, this will fail. That's normal behavior of most unix programs - and it's quite useful when you make a mistake when writing out a long pathname, then instead of having it silently create a slew of nested dirs, it fails instead.

So that's by design. I could improve the error message. But not going to change the general behavior. You can always combine the guider command with mkdir if you need this type of functionality.