How do I login as user in Linux?

How do I login as user in Linux? 

su Command Syntax
  1. Username – Replace username with the actual username you want to log in with.
  2. –c or –command [command] – Runs a specific command as the specified user.
  3. – or –l or –login [username] – Runs a login script to change to a specific username.

What are root commands? The root is the user name or account that by default has access to all commands and files on a Linux or other Unix-like operating system. It is also referred to as the root account, root user, and the superuser.

How do I use sudo root? To use sudo when using the command line, simply type “sudo” before the command you wish to run. Sudo will then prompt you for your password. Sudo will remember your password for a set amount of time (15 minutes by default).

What is Unix bin? /bin is a standard subdirectory of the root directory in Unix-like operating systems that contains the executable (i.e., ready to run) programs that must be available in order to attain minimal functionality for the purposes of booting (i.e., starting) and repairing a system.

How do I login as user in Linux? – Additional Questions

How do I run as root user?

See the section called “Root And Sudo” for more details.
  1. Open the Run Command dialog by typing: Alt-F2.
  2. Enter the name of the program you wish to run, prefixed with kdesu and press Enter. For example, to launch the file manager Konqueror with root privileges, type kdesu konqueror.