am working on a shell script. I need to find out the current user name. How do I find out the current user name under Bash or Ksh shell running on Linux or Unix like operating systems?
I am a new Linux and Unix system user. How do I find out the user and groups names and numeric IDs of the current user or any users on my server? How can I display and effective IDs on the system using command line options? In Linux, how do I find a user’s UID or GID?
I like the way Ubuntu Linux works – all people in admin groups should able to run all commands after running it via sudo “command-name”. How do I setup sudo under CentOS or Red Hat Enterprise Linux to allow all members of the ‘admin’ group to run all commands?
ow do I check the existing Linux / UNIX users and groups under Linux operating system?