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How do I sudo a command in a script without being asked for a password?
How to to run sudo command without a password:
- Gain root access: su –
- Backup your /etc/sudoers file by typing the following command:
- Edit the /etc/sudoers file by typing the visudo command:
- Append/edit the line as follows in the /etc/sudoers file for user named ‘vivek’ to run ‘/bin/kill’ and ‘systemctl’ commands:
How do I run Systemctl without sudo?
Run Systemd Service as standard Logged in user Create a systemd service unit file under the directory. Reload systemd. Confirm the service is available. $ systemctl –user list-unit-files syncthing.
How do I run as sudo?
Run sudo and type in your login password, if prompted, to run only that instance of the command as root. Next time you run another or the same command without the sudo prefix, you will not have root access. Run sudo -i . This will give you an interactive root shell.
How do I sudo to a user?
To run a command as the root user, use sudo command . You can specify a user with -u , for example sudo -u root command is the same as sudo command . However, if you want to run a command as another user, you need to specify that with -u ….Using sudo.
| Commands | Meaning |
|---|---|
| sudo -u user -s | Start a shell as user. |
Can a script be run without Sudo privileges?
That way, all commands within the script will be run with root privileges and you only need to give the password once when launching the script. If you need a particular command within the script to be run without sudo privileges, you can run it as a regular user with (thanks Lie Ryan ):
What’s the best way to launch a Sudo script?
I think the best thing that you can do is launch the script with sudo and then launch the processes you want to run as a normal user explicitly with su user or sudo -u user:
What does Sudo-B./ B _ script do?
It will run sudo -b ./B_script . This asks for the password ( immediately after you run ABC_script ). Assuming that the correct password is entered, it spawns B_script in the b ackground (because -b was specified) as root. This seems to be equivalent to sudo sh -c “./B_script &”. B_script starts running asynchronously, in parallel with ABC_script .
How to find the root user of a Sudo script?
However, in case you want to drop root privileges to some of the commands and run them as the actual user who invoked the command with sudo, you can check for the $SUDO_USER variable to figure out the original user. #!/bin/bash # ref: https://askubuntu.com/a/30157/8698 if ! [ $ (id -u) = 0 ]; then echo “The script need to be run as root.”