如何使用 nohup 在 linux 中将进程作为后台进程运行？
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How can I use nohup to run process as a background process in linux?
提问by Guilgamos
I use this command to run my work.
我使用这个命令来运行我的工作。
(time bash executeScript 1 input fileOutput $> scrOutput) &> timeUse.txt
While, 1 is a number of process that I use to run this work. I have to change the number of process for each run. At each time it use long time to complete. Then I want to run it as background process.
而 1 是我用来运行这项工作的一些进程。我必须更改每次运行的进程数。每次都需要很长时间才能完成。然后我想将它作为后台进程运行。
How can I do it?
我该怎么做？
I tried:
我试过：
nohup ((time bash executeScript 1 input fileOutput $> scrOutput) &> timeUse.txt)
But it doesn't work.
但它不起作用。
回答by Erik
Use screen: Start
screen, start your script, press Ctrl+A, D. Reattach withscreen -r.Make a script that takes your "1" as a parameter, run
nohup yourscript:#!/bin/bash (time bash executeScript input fileOutput $> scrOutput) &> timeUse.txt
使用屏幕： Start
screen，启动您的脚本，按Ctrl+ A, D。用 重新连接screen -r。制作一个以“1”为参数的脚本，运行
nohup yourscript：#!/bin/bash (time bash executeScript input fileOutput $> scrOutput) &> timeUse.txt
回答by Shawn Chin
In general, I use nohup CMD &to run a nohup background process. However, when the command is in a form that nohupwon't accept then I run it through bash -c "...".
一般来说，我nohup CMD &用来运行一个 nohup 后台进程。但是，当命令采用nohup不接受的形式时，我会通过bash -c "...".
For example:
例如：
nohup bash -c "(time ./script arg1 arg2 > script.out) &> time_n_err.out" &
stdout from the script gets written to script.out, while stderr and the output of timegoes into time_n_err.out.
脚本中的 stdout 被写入script.out，而 stderr 和 的输出time进入time_n_err.out.
So, in your case:
所以，在你的情况下：
nohup bash -c "(time bash executeScript 1 input fileOutput > scrOutput) &> timeUse.txt" &
回答by Tong Gao
You can write a script and then use nohup ./yourscript &to execute
可以写一个脚本然后nohup ./yourscript &用来执行
For example:
例如：
vi yourscript
put
放
#!/bin/bash
script here
you may also need to change permission to run script on server
您可能还需要更改在服务器上运行脚本的权限
chmod u+rwx yourscript
finally
最后
nohup ./yourscript &
