当尝试执行sudo命令[duplicate]时，shell脚本给出了“没有tty present和没有askpass程序指定”

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How to fix 'sudo: no tty present and no askpass program specified' error? 19 answers
如何修复“sudo:没有tty present和没有askpass程序指定的”错误?19日答案

I have a shell script which creates a user and executes another script as that user

我有一个shell脚本，它创建一个用户并执行另一个脚本作为该用户。
```
sudo useradd -m devops
sudo passwd devops
sudo adduser devops sudo  
su - devops -c "sh /path/to/myscript.sh"
```
This script creates the user,sets the password and adds user to sudo group as expected.

该脚本创建用户，设置密码，并按预期将用户添加到sudo组。
myscript.sh contains commands which uses sudo previlages. (sudo apt-get update, sudo apt-get install software-properties-common etc.). And other commands like ssh-keygen,curl and wget.
myscript。sh包含使用sudo previlages的命令。(sudo apt-get update, sudo ap -get install software-properties-common等)。以及其他命令，如ssh-keygen、curl和wget。
All commands except the one's with sudo are executed correctly and producing results as excepted.
除了sudo命令外，所有命令都被正确执行并产生结果。
But commands having sudo fails by giving the error "no tty present and no askpass program specified"
但是有sudo的命令失败了，因为它给出了错误“没有tty present和没有指定askpass程序”
Why does this happen in this case and how can I overcome this?
为什么会发生这种情况，我该如何克服呢?
I have seen similiar questions but will be thankful if I get a clear explanation in this context,thank you.
我见过类似的问题，但如果我能在这种情况下得到一个清晰的解释，我会很感激的，谢谢你。

1 个解决方案

#1

Try to replace this:

尝试更换:

su - devops -c "sh /path/to/myscript.sh"

with this:

用这个:

sudo -u devops -H sh -c "sh /path/to/myscript.sh"

The -c option of su doesn't support interactive mode:

su的-c选项不支持交互模式:

-c, --command COMMAND Specify a command that will be invoked by the shell using its -c.

命令命令指定一个命令，shell将使用它的-c调用该命令。

The executed command will have no controlling terminal. This option cannot be used to execute interractive programs which need a controlling TTY.

执行的命令将没有控制终端。此选项不能用于执行需要控制的交互式程序。

(man su)

(苏)

By the way, I wouldn't use sudo within a script everywhere. The script might simply require root permissions. Within the script you might drop privileges where necessary by means of the above-mentioned sudo command.

顺便说一下，我不会在脚本中到处使用sudo。脚本可能只需要根权限。在脚本中，您可以通过上述sudo命令在必要时删除特权。

#1