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Can a sudo command be asked for a password?
When a sudo command is executed a user is asked for a password. This default bahaviouv of a sudo command can be changed by editing /etc/sudoers config file. If we do not want to be asked for a password we alter a /etc/sudoers file by changing line: The number of minutes before sudo will ask a user to enter a password again is by default 15.
Do you need a second user to use sudo?
However, the su command requires a second user account and password, which isn’t always feasible. For most modern Linux distributions, a user must be in the sudo, sudoers, or wheel group to use the sudo command. By default, a single-user system grants sudo privileges to its user.
How does Sudo read the password from stdin?
The -S switch makes sudo read the password from STDIN. This means you can do However, the suggestions by others that do not involve passing the password as part of a command such as checking if the user is root are probably much better ideas for security reasons
What do you need to know about Sudo install?
For example, you may want an user john to run a find command or custom bash shell script as an user greg or even as a user root ( superuser ) without password exchange. In this case a sudo utility with its /etc/sudoers configuration file will be your friend.
How do I test sudo for SSH password?
Ensure the following line is commented out: This step is required for sudo to work. Press ESC + : (colon) followed by wq!, and then press Enter. Test the configuration by entering in the following two commands. The result should be a listing of the directory without being prompted for a password:
Who is owner of SUDO _ test.sh script?
As a result, when we now try to execute the /usr/local/bin/sudo_test.sh script as a lilo user using sudo command and enter lilo’s password: the process ID 3502 is owned by a root and the owner of the /tmp/sudo_file.tmp is root user.