linux远程开启不挂起的服务

解决Linux关闭终端(关闭SSH等)后运行的程序自动停止

λ nohup --help
Usage: nohup COMMAND [ARG]...
  or:  nohup OPTION
Run COMMAND, ignoring hangup signals.

      --help     display this help and exit
      --version  output version information and exit

If standard input is a terminal, redirect it from an unreadable file.
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, use 'nohup COMMAND > FILE'.

NOTE: your shell may have its own version of nohup, which usually supersedes
the version described here.  Please refer to your shell's documentation
for details about the options it supports.

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report nohup translation bugs to <http://translationproject.org/team/>
Full documentation at: <http://www.gnu.org/software/coreutils/nohup>
or available locally via: info '(coreutils) nohup invocation'

开启不挂起的服务, ssh退出后依然运行服务

nohup python3 main.py --cmd=runserver