Unix-1

1. Which command is used to display the top of the file?

Cat

Head

More

Grep

None of the above

2. Which command is used to remove a directory?

Rd

Rmdir

Dldir

Rdir

None of the above

3. Which command is used to sort the lines of data in a file in reverse order

Sort

Sh

St

Sort -r

None of the above

4. Which command sends the word count of the file infile to the newfile.

Wc infile >newfile

Wc newfile

Wc infile - newfile

Wc infile | newfile

None of the above

5. Which command is used to extract specific columns from the file?

Cat

Cut

Grep

Paste

None of the above

6. Which of the following commands is used to display the directory attributes rather than its contents?

Ls -1 -d

Ls -1

Ls -x

Ls -F

None of the above

7. Which command is used to copy all files having the string chap and any two characters after that to the progs directory?

Cp chap?? progs

Cp chap* progs

Cp chap[12] /progs/*.*

Cp chap?? /progs/*

None of the above

8. Which of the following keys is used to replace a single character with new text?

S

R

C

None of The above

9. The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:

000^patA.^pat^pat

755

744

555

None of the above

10. Which of the following files will displayed by this command cat *ch*

Patch

Catch

Ch

All of the above

C