如何将当前正在运行的 linux 进程置于后台？
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How can I put the current running linux process in background?
提问by Mirage
I have a command that uploads files using git to a remote server from the Linux shell and it will take many hours to finish.
我有一个使用 git 将文件从 Linux shell 上传到远程服务器的命令，它需要几个小时才能完成。
How can I put that running program in background? So that I can still work on shell and that process also gets completed?
我怎样才能把那个正在运行的程序放在后台？这样我仍然可以在 shell 上工作并且该过程也完成了吗？
采纳答案by Ed Heal
Suspend the process with CTRL+Z then use the command bgto resume it in background. For example:
使用 CTRL+Z 暂停进程，然后使用该命令bg在后台恢复它。例如：
sleep 60
^Z #Suspend character shown after hitting CTRL+Z
[1]+ Stopped sleep 60 #Message showing stopped process info
bg #Resume current job (last job stopped)
More about job control and bgusage in bashmanual page:
手册页中有关作业控制和bg使用的更多信息bash：
JOB CONTROL
Typing the suspendcharacter (typically ^Z, Control-Z) while a process is running causes that process to be stopped and returns control to bash. [...] The user may then manipulate the state of this job, using the bg command to continue it in the background, [...]. A ^Z takes effect immediately, and has the additional side effect of causing pending output and typeahead to be discarded.bg [jobspec...]
Resume each suspended job jobspecin the background, as if it had been started with &. If jobspecis not present, the shell's notion of the current jobis used.
作业控制在进程运行时
键入挂起字符（通常是 ^Z、Control-Z）会导致该进程停止并将控制权返回给 bash。[...] 然后用户可以操纵此作业的状态，使用 bg 命令在后台继续它，[...]。A ^Z 立即生效，并具有导致挂起输出和预先输入被丢弃的额外副作用。bg [ jobspec...]在后台
恢复每个暂停的作业jobspec，就好像它是用 & 开始的一样。如果 jobspec不存在，则使用 shell 的当前作业概念。
EDIT
编辑
To start a process where you can even kill the terminal and it still carries on running
启动一个进程，你甚至可以杀死终端，它仍然继续运行
nohup [command] [-args] > [filename] 2>&1 &
e.g.
例如
nohup /home/edheal/myprog -arg1 -arg2 > /home/edheal/output.txt 2>&1 &
To just ignore the output (not very wise) change the filename to /dev/null
要忽略输出（不是很明智），请将文件名更改为 /dev/null
To get the error message set to a different file change the &1to a filename.
要将错误消息设置为不同的文件，请将其更改&1为文件名。
In addition: You can use the jobscommand to see an indexed list of those backgrounded processes. And you can kill a backgrounded process by running kill %1or kill %2with the number being the index of the process.
此外：您可以使用该jobs命令查看这些后台进程的索引列表。您可以通过运行kill %1或kill %2将数字作为进程的索引来终止后台进程。
