Spoken Tutorials - Linux Assignment 
						Funded by the National Mission on Education through ICT
							 Indian Institute of Technology Bombay,
								http://spoken-tutorial.org
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Environment Variable


1. How can you know what is the secondary command prompt set your system ?
   How can you change the secondary command prompt from the default to your username ?

2. How can you ensure that the mv command (used for renaming a file) always asks for permission before overwriting an existing destination file ? 
   [ Hint : use alias command ]