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The "root" account is the most privileged account on a Unix system.

5
votes
You can use who command to find out all the logged in users. There is w command also available to find out the same.
answered Feb 14 '13 by pradeepchhetri
38
votes
To know whether a particular user is having sudo access or not, we can use -l and -U options together. For example, If the user has sudo access, it will print the level of sudo access for that par …
answered Oct 13 '12 by pradeepchhetri
4
votes
You can write a script using expect tool. In Redhat, expect package comes by default. But in Ubuntu you need to install it separately. You can check this by using commands: $ rpm -qa | grep expect …
answered Oct 19 '12 by pradeepchhetri