UNIX Commands

Syntax :     $ CommandName <-Options> <Arguments> 

Command Name :  Operation to be performed Lower Case. 

<-Options> : Controls O/p of Command  as well as operation

<Arguments> : Data processed to command

Options always start with hyphen (-)

1] Command Name: uname      => Displays the OS name

   

$ uname

Displays the OS name

$ uname –v

Displays release date of OS

$ uname –r

Displays version of the OS

2] Command Name: who   => Displays all the logged users of UNIX.

$ who

Displays all logged in users, login name & time of login.

$ whoami

user 2

Displays the user login name

3] finger: List all the logged user in details

$ finger 

Details of all the users are listed like, login name, actual name, phone, emailed, Office.

4] pwd: (Print working directory): Prints the current working directory path.

$ pwd

   /home/demo/batch2/class3