If you have a long job using the command line in Linux, here are some tips.
Some jobs, such as compiling a program or using vacuumdb in postgres require a long time. Normally, you cannot use the same command line when running these jobs. If you are using ssh remotely, you're stuck (unless you login again).
Now you can add a space and ampersand at the end of the command and this *should* send this to the background. But I've found this doesn't always work. But even if it does, the following does still apply.