#SU VS SUDO PASSWORD#

But both the commands directs me to the root terminal. And when I type just su It asks for the root user password. :) When I type sudo su It asks for my user password. If username is not specified with su and su -, the root account is implied. 11 This question already has answers here : What are the differences between 'su', 'sudo -s', 'sudo -i', 'sudo su' (6 answers) Closed 8 years ago. leiningen setup on OSX Lion - stop the : . The main difference is : 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 starts a shell with current environment settings for the specified user. In other words, the tool lets you assume the identity of some other user without having to logout and then login (as that user). The main work of the su command is to let you switch to some other user during a login session. Subscribe to get more delivered directly to you « What does scale really mean to a mobile browser? With pictures. In this article, we will discuss in detail the ‘su’ command as well as how it differs from the ‘sudo’ command. Understanding and using sudo in Unix or Linux (with examples).

#SU VS SUDO PASSWORD#

sudo asks for your password and (assuming you have sudo rights) executes a command with root privileges ( sudo reboot. su (without username) start a shell for user root (after asking for the root password). Unless you're root, you'll be asked the password for someuser.

I haven’t yet found a reason to use all of them as a programmer, but they’re definitely good to know.įollow me you in the comments! References: Here are the differences: su starts a shell for user someuser.

the most distinguishable difference between the 2 is that the SU command is. Reading through the man pages, there are many possible configurations that more precisely control environment variables, which shell to start with, and many other things. The SU command stands for Substitute user whereas SUDO stands for Super User Do. There is a lot more to learn about these commands, aside from the particular options that I’ve described here. I could sudo su to the user I wanted to be, and no password was required. In this exercise, I found that sudo su was the right option for me to achieve my desired effect.

The only use that I can see for this is, as a system administrator, debugging issues that are user specific. bashrc/.bash_profile files, and drop you into the target user’s home directory.

The -i option is supposed to stand for simulate initial login. The sudo -u -i command is what you need to run if you want to simulate precisely the initial logged in state of another user.

Su vs sudo