如何在一行命令中将密码应用于 sudo 并执行 su root？

Question

I've created an user named samX with root privilege (have appended "samX ALL=(ALL:ALL) ALL" in visudo ).

I'm trying to apply password to sudo , then su root and execute whoami sequentially in one line command. My current command is somewhat as follows, but it complains error: sudo: su root; whoami: command not found

echo 'CbEYKFKt' | sudo -S 'su root; whoami'

In which, 'CbEYKFKt' is the password for user samX.

Is there anyway to solve this problem? Thanks a lot.

Answer 1

echo 'CbEYKFKt' | sudo -S su -c whoami

should work - -c specifies a command for su whereas in your example you seem to be running a command 'root; whoami' which does not exist - there is no shell to break that up into two separate commands.

Answer 2

You should really add a line to your sudoers file such as

samX ALL=(ALL:ALL)  NOPASSWD: /sbin/su

instead of saving your password in the bash history or any other file. With that, there is no need to enter the password at all.

If you want to perform a different command, add that.

Answer 3

当您通过 putty 或 moba 登录到 shell 会话时，您在其中存储了非 root 帐户的登录凭据，只需添加此命令以在 putty 或 moba 登录时执行，它会立即将您的访问权限切换到 root。

echo "PASSWORD" | sudo -S su - && sudo su

Answer 4

Instead of putting all commands in one line, you can write codes normally and break it into several lines:

#!/bin/bash
echo "CbEYKFKt" | sudo -S echo && sudo -s <<EOF
#put your code here
#All codes will be executed as sudo
EOF

Note: passing password like that is a bad idea.

Answer 5

这应该有效。

echo CbEYKFKt | sudo -S; whoami