Unix Practice Test 7

1. The output of the following command will be:

$ uniq  foo1 foo2 

2. Which of the following is not a special parameter used by the shell?

3.

head -n 3 emp.lst | tr ‘[a-z]’  ‘[A-Z]’

Above command will change the case of text from lower to upper.

4. Which option is used by the sort command to redirect the output to a specified file?

5. read command is shell’s internal tool.

6. The syntax for using && is ______________

7. grep command supports both extended and regular expressions.

8. When we use &&, the second command is executed only when first succeeds.

9. The interval regular expression uses the character _______

10. Which command is used for making the scripts interactive?