List of basic unix commands:
The following commands used for checking who and are all log in for unix systems.
who :
details of who all are logged in
finger : details of who all are logged in with extra information
who am I :
details of ourself
whoami :
userid of current user
Please check following example screen for the above unix commands.
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| Fig 1 : Unix example
Some Other basic commands with example
type : to check type of command
 alias d=date : d will work like 'date' command 
alias : give list of all aliases
 pwd : present working directory 
man type : manual of 'type' command (for the help.)
If i want to check help for 'ls' command then type man ls, it gives what ls command for.
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