Linux and Unix nohup command
Runs a command, making it immune to any HUP (hangup) signals while it is running.
nohup COMMAND [ARG]...
|--help||display a help message and exit.|
|--version||output version information and exit.|
If standard input is a terminal, nohup redirects it from /dev/null. If standard output is a terminal, append output to "nohup.out" if possible, "$HOME/nohup.out" otherwise. If standard error is a terminal, redirect it to standard output. To save output to file FILE, use "nohup COMMAND > FILE".
nohup find -size +100k > log.txt
Run the find command, instructing it to search for any file bigger then 100k. find will continue to search regardless of the user's connection to the terminal, and log results to the file log.txt.
nice — Invoke a command with an altered scheduling priority.