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Total No Of Questions: 20.
1) Which of the following special shell variables is used to process number of the last background job?


2) Which of the following commands is used to change the working directory?


3) The seventh field of /etc/password is


4) Which commands is used to assign executable permission to all of the files named "letter"?


5) Which operator will be used with chmod command to assign absolute permission?


6) Which of the following commands is used to rename a file?


7) Which of the following command is used to go to home directory?


8) Which of the following command addresses all users who are currently hooked on?


9) Which command is used to save the standard output in a file, as well as display it on the terminal?


10) Which command will be used with vi editor to replace single character under cursor with any number of characters?
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