I haven’t yet found a reason to use all of them as a programmer, but they’re definitely good to know. bashrc script will be run before executing the su - root command. Sudo is more secure than su since it offers more granular control over user permissions. 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. sudo su lauches su directly with super user privileges, while sudo bash lauches the shell first and then executes the command with bash -c. Su allows users to switch to the root account and perform administrative tasks, while sudo allows users to execute specific commands with elevated privileges. The target user’s PATH variable is updated to include the user-specific. Resets the shell settings to those of the target user. Retains the current user’s shell settings. Changes the working directory to the target user’s home directory. There is a lot more to learn about these commands, aside from the particular options that I’ve described here. The key difference between su and su - Command in Linux. 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. If you are trying to run a command as another user, sudo will ask for your password, su will ask for the other users password. Ever wondered whats the difference between su and sudo In this video, youll learn all about the differences of the switch user(su) and switch user and do(. Passing a single hyphen is identical to passing -l or -login. bashrc/.bash_profile files, and drop you into the target user’s home directory. 1 Answer Sorted by: 26 When you provide a double-hyphen the experience you will have is identical to if you had just executed sudo su without any hyphen. The -i option is supposed to stand for simulate initial login. The primary difference between the two is the password they require: while sudo requires current users password, su requires you to enter the root user password. 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.
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