GATE IT 2004 | Question: 16

Question

Which of the following commands or sequences of commands will rename a file x to file y in a Unix system ?

1. mv y, x
2. mv x, y
3. cp y, x (rm x)
4. cp x, y (rm x)

• A. II and III
• B. II and IV
• C. I and III
• D. II only

Comments

Out of syllabus

Answer 1

ans is B

Expalantion:

The mv command is used to move or rename files.

mv renames file SOURCE to DEST, or moves the SOURCE file (or files) to DIRECTORY.

cp = copies files from one location to another

rm : deletes a file without confirmation (by default).

Therefore cp x, y // will copy x to y

ans rm x // will deletes the file 

Comments

from your statements,

cp x,y(rm x)

above command will copies the contents of file x to file y. and deletes file x.

so,now file y will contains   previous file y content + file x content.

 

i think option D( II only) would be more appropraiate

Answer 2

ans c)

Comments

how is it option C?

mv source destination

cp source destination

hence option B should be ans.