允许命令在bash脚本中使django runserver命令后台运行后运行? [英] Allow commands to run after backgrounding django runserver command in a bash script?

问题描述

我正在编写一个简单"脚本来启动django服务器，在我开发时将其后台启动，然后启动Firefox.

I'm writing a 'simple' script to start up the django server, background it then start up firefox while I dev.

我看过 </dev/null & 的技巧和在命令行上工作.但是，当我在脚本中使用它时，它仍然会挂在服务器上.使用 ctrl-z 和bg命令的背景仅使脚本而不是命令成为背景.

I've seen the </dev/null & trick and that works on the command line. But when I use it in my script it still hangs on the server starting. Backgrounding with ctrl-z and the bg command only backgrounds the script and not the command.

有没有一种方法可以向Django传递请勿输入猪"标志?或者，我可以通过将&放在脚本末尾以外的其他方式在脚本中使其后台运行?还是只是告诉脚本不要在单独的会话中全部运行?

Is there a way I can pass django a 'Don't hog input' flag? Or I can background it inside the script in some way other than putting & at the end of it? Or just tell the script not to run it all in a separate session?

这是我的完整脚本(很难理解，如果我能使它正常工作，它可能会很美化):

Here's my script in full (it's full on hard-core ugly, it might get prettified if I can get this to work):

SETTING_ENV=$1
if [ "$PWD" = "/home/$USERNAME/PROJECT/" ]; then
    pid=$(for pid in $(pidof -x "python"); do ps -p $pid -o pid,cmd --no-heading; done| grep [m]anage|head -1|cut -d" " -f2)
    if [ -z $pid ]; then
        python ./manage.py runserver --settings=project.settings.$SETTING_ENV < /dev/null &
    else
        echo "Server still running on : $pid"
    fi
    pids=$(pidof -x firefox)
    for pid in $pids; do
        echo $pid
        if [ -z $pid ]; then
             echo "starting firefox"
             firefox --new-window localhost:8000 &
        else ecjp "Firefox already running on pid: $pid"
        fi
    done
else
    echo "$PWD is not /home/$USERNAME/PROJECT";
fi

推荐答案

您可以将所有命令放在括号中，如下所示:

You can put all your command in parenthesis like this :

(python ./manage.py runserver --settings=project.settings.$SETTING_ENV < /dev/null &)

当您在括号之间运行命令时，它将创建一个新的子外壳，因此当您退出外壳时，该命令将继续运行.

When you run a command between parentheses it will create a new sub-shell so when you will quit the shell the command will continues to run.

或者您也可以使用disown或nohup:

Or you can also use disown or nohup :

python ./manage.py runserver --settings=project.settings.$SETTING_ENV < /dev/null & 
disown

-

nohup python ./manage.py runserver --settings=project.settings.$SETTING_ENV < /dev/null &

这篇关于允许命令在bash脚本中使django runserver命令后台运行后运行?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！