nohup command

Background operation ：

sh test.sh &

Turn off the terminal and run it ：

nohup sh test.sh &

In general use ：

nohup sh test.sh > nohup.out  2>&1 &

2>&1 explain ：
Will standard error 2 Redirect to standard output &1 , standard output &1 Then redirected to nohup.out In file .