PGDCA (Practicals)/ MCA (I Yr) / BCA Term-End Practical Examination

00407

Decembet,2008 CS-02P : INTRODUCTION TO SOFTWARE Timeallowed:2hours

Note :

MaximumMarks: 1.00 (VVeightage : 15%)

Thereare 3 questionsin this pnperfor 70 marks. Answer them all. The rest 30 marksare for the oiaa-aoce.

1.

Write a shell script to echo the length of the string given as argument.

25

2.

Write a shell script to selectany file given by the user and double spacethe lines.

25

3.

List and executethe following UNIX commands : (i)

To seethe users logged into the system.

10

(i0

To set a file with the file-permissions to read-only for the " group" and " others".

10

cs-02P/s4

1,000