[Glass] Non blocking Topaz execution

[BrunoBB]

Hi,

This is useful information from Kurt Kilpela:
The character & has special meaning in bash (and other shells.) It tells the
shell to execute the command in the background. This is not a specific
feature of topaz.

If you run a command with &, stdout/stderror are configured to print in the
terminal. Also, closing the terminal will result in the background process's
termination. To prevent this, you can use the 'nohup' command.

```bash
nohup topaz arg1 arg2 &
```

This will redirect stdout/stderror to a file called 'nohup.out'. Closing the
terminal will allow the background process to continue running.

regards,
bruno



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