
What are the differences between "su", "sudo -s", "sudo -i", "sudo …
Oct 22, 2011 · su lets you switch user so that you're actually logged in as root. sudo -s runs a shell with root privileges. sudo -i also acquires the root user's environment. To see the …
Why do we use su - and not just su? - Unix & Linux Stack Exchange
Feb 7, 2011 · su - username sets up the shell environment as if it were a clean login as the specified user, it access and use specified users environment variables, su username just …
su vs sudo -s vs sudo -i vs sudo bash - Unix & Linux Stack Exchange
su - means environment variables will be reset to root and su means environment variables as old user. for example: root's home directory if you use su - or old user home directory if you use …
Is there a single line command to do `su`? - Ask Ubuntu
Oct 7, 2013 · If you write a password in a command like su <username> -p <password>, it would be stored in plain text in your bash history. This is certainly a huge security issue. If you need …
bash - su options - running command as another user - Unix
$ sudo su -c whoami nobody [sudo] password for oli: nobody When your command takes arguments you need to quote it. If you don't, strange things will occur. Here I am —as root— …
What's the difference between sudo su - and sudo su
I will create a question from it but sudo su - and sudo su -l differs. On an account where I ssh into with a key only, and I have sudo rights to change to a specific other user, sudo su - changes …
Why am I getting "Authentication failure" when running the "su" …
su asks for the password of the account you're trying to login. It's usage (simplified): su username When omitting username, the username default to root. Since the root password is disabled by …
su: Permission denied despite correct password
Jan 20, 2013 · Alternatively, you can disable the group membership check for su in pam by editing /etc/pam.d/su and commenting out this line: auth required pam_wheel.so use_uid It requires …
Why does su fail with "authentication error"? - Ask Ubuntu
However, the OP has asked specifically about su to root. I was assuming they knew why they want to do that and that they have a good reason to do it. So I was adding an alternate path to …
How do I set the root password so I can use su instead of sudo?
su And you will be prompted for the root password you've set. That's it! Share. Improve this answer ...