Linux 如何将后台程序带到前台
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How to bring a background program to foreground
提问by nevesly
I am working on CentOS6, and running a django server for my development on a tmux session as：
我在 CentOS6 上工作，并在 tmux 会话上为我的开发运行一个 django 服务器：
python manage.py runserver 0.0.0.0:8000
python manage.py runserver 0.0.0.0:8000
So I can read my debug string print on it.
所以我可以读取我的调试字符串打印在它上面。
While there is an unknown reason which made my tmux session lost, and I cannot to bak to my working session using "tmux attach" command.
虽然有一个未知的原因导致我的 tmux 会话丢失，但我无法使用“tmux attach”命令进入我的工作会话。
I still can find my server is running by ps command, but I have no permission to kill this in order to run a new server on the same port.
我仍然可以发现我的服务器正在通过 ps 命令运行，但我无权杀死它以便在同一端口上运行新服务器。
So, I want to call this backgound server to frontgound again.
所以，我想再次调用这个后台服务器到前台。
As I never use ctrl+z or other ways to take process background, so even I use jobs command, there are no jobs.
由于我从不使用 ctrl+z 或其他方式获取进程后台，因此即使我使用作业命令，也没有作业。
But I dont know if I can do this, and how to do this...
但我不知道我是否可以做到这一点，以及如何做到这一点......
Thanks all！！
谢谢大家！！
回答by m4t1t0
You can use the command jobsto obtain a list of your jobs, then you can use fg <number of job>to bring that job to the front.
您可以使用该命令jobs来获取您的作业列表，然后您可以使用该命令fg <number of job>将该作业置于最前面。
回答by Vijay
Use the jobscommand to find the list of background processes that are started by you.
for eg: there is script which simply sleeps for 10 secs in 5 iterations.I ran it 4 times in the background.
使用该jobs命令查找由您启动的后台进程列表。例如：有一个脚本在 5 次迭代中只休眠 10 秒。我在后台运行了 4 次。
>jobs
[1] + Running ./temp.sh
[2] - Running ./temp.sh
[3] Running ./temp.sh
[4] Running ./temp.sh
fgis the command to bring it back to the foreground as shown below.
fg是将其带回前台的命令，如下所示。
>fg 1
[CTRL -c]
as seen above i have ended the process and it no longer exists.
now if i again run jobs
如上所示，我已经结束了这个过程，它不再存在。现在如果我再跑jobs
>jobs
[2] + Running ./temp.sh
[3] Running ./temp.sh
[4] - Running ./temp.sh
>
Also you can check herefor more
你也可以在这里查看更多
