How do I assign the output of a shell command to a shell variable under Unix like operating system? For example, I want to store the date command output to a variable called $now. How do you do that?
I am a new Linux and Unix system user. How do I find out the current login name on Linux or Unix-like operating system using command prompt?
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?
Bash shell is used for various purposes under Linux. How do I customize the shell environment variable under Linux operating systems?