Linux后台运行程序

test@test:~$ sudo nohup ./test>/dev/null 2>&1 &
[1] 20973
test@test:~$ ps -ef|grep test
root     20973 12198  0 13:54 pts/1    00:00:00 sudo nohup ./test
root     20974 20973 16 13:54 pts/1    00:00:00 ./test
test     21056 12198  0 13:54 pts/1    00:00:00 grep --color=auto test