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 …

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 - 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 …

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 …

$ 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— …

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 …

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 …

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 …

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 …

su And you will be prompted for the root password you've set. That's it! Share. Improve this answer ...