让sudo和nohup一起工作 [英] Getting sudo and nohup to work together

问题描述

Linux新手在这里.

Linux newbie here.

我有一个perl脚本，需要两个命令行输入.我试图在后台运行它，但这就是我得到的:

I have a perl script which takes two command line inputs. I tried to run it in the background but this is what I got:

[~user]$ nohup sudo ./ascii_loader_script.pl 20070502 ctm_20070502.csv &
[2] 19603
[~user]$ nohup: appending output to `nohup.out'

在系统返回"nohup:将输出附加到`nohup.out'"之后，将不会出现新的提示.然后，只要我键入其他命令，shell就会告诉我该进程已停止:

after the system returns "nohup: appending output to `nohup.out'", no new prompt will appear. Then as long as I type in some other command, the shell will tell me that the process is stopped:

[~user]$ nohup sudo ./ascii_loader_script.pl 20070502 ctm_20070502.csv &
[2] 19603
[~user]$ nohup: appending output to `nohup.out'
ls
ascii_loader_script.pl  format_wrds_trd.txt  nohup.out  norm_wrds_trd.cfg
[2]+  Stopped                 nohup sudo ./ascii_loader_script.pl 20070502 ctm_20070502.csv

我已经看过这篇文章，并在执行命令之前尝试执行"sudo date".还是一样. http://www.sudo.ws/pipermail/sudo-users/2003-July/001648.html

I've looked at this post and tried to do "sudo date" before executing the command. Still got the same thing. http://www.sudo.ws/pipermail/sudo-users/2003-July/001648.html

推荐答案

这里的问题，恕我直言，不是nohup，而是后台处理sudo.

The problem here, imho, is not nohup, but background processing sudo.

您将进程置于后台(命令末尾为&)，但是sudo可能需要密码验证，这就是进程停止的原因.

You are putting the process in background (& at end of command) but probably sudo needs password authentication, and that is why the process stops.

尝试以下方法之一:

1)从命令末尾删除&符号，回复密码提示，后记将其置于后台(通过键入CTRL-Z-这将停止该过程并发出bg命令将其发送至后台)

1) remove the ampersand from end of command, reply to passord prompt and afterwords put it in background (by typing CTRL-Z - which stops the process and issuing the bg command to send it to background)

2)通过添加以下行来更改/etc/sudoers以不要求用户输入密码: myusername ALL =(全部)NOPASSWD:全部

2) Change the /etc/sudoers to not ask for users password by including the line: myusername ALL=(ALL) NOPASSWD: ALL

如果除了密码回复之外，您的应用程序还等待其他输入，那么您可以将输入通过管道传递给以下命令: $ cat response.txt | sudo mycommand.php

If besides the password reply your application waits for other input, then you can pipe the input to the command like this: $ cat responses.txt|sudo mycommand.php

hth

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