MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Unix knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHICH_ONE_OF_THE_FOLLOWING_COMMAND_WILL_BE_USED_FOR_ADDING_TWO_SPACES_BEFORE_EVERY_LINE_IN_EMP.LST??$ |
| A. | sed ‘s/^/ /’ emp.lst |
| B. | sed ‘s / / /’emp.lst |
| C. | sed ‘s /$/ /’emp.lst |
| D. | sed ‘s/$/ |
| Answer» B. sed ‚Äö√Ñ√∂‚àö√ë‚àö‚â§s / / /‚Äö√Ñ√∂‚àö√ë‚àö¬•emp.lst | |
| 2. |
Which command will be used for selecting lines 3 to 10 from emp.lst?$ |
| A. | sed 3,10 emp.lst |
| B. | sed -n ‘3,10p’ emp.lst |
| C. | sed -n ‘^,10p’ emp.lst |
| D. | sed -n, 10p |
| Answer» C. sed -n ‚Äö√Ñ√∂‚àö√ë‚àö‚â§^,10p‚Äö√Ñ√∂‚àö√ë‚àö¬• emp.lst | |
| 3. |
Which shortcut does sed offer to replace the string Linux with Red hat Linux?$ |
| A. | { } |
| B. | ( ) |
| C. | ^^ |
| D. | & |
| Answer» E. | |
| 4. |
The interval regular expression uses the character ______? |
| A. | { |
| B. | } |
| C. | { and } |
| D. | ( and ) |
| Answer» D. ( and ) | |
| 5. |
Basic regular expressions are divided into ______ categories. |
| A. | 1 |
| B. | 3 |
| C. | 2 |
| D. | 5 |
| Answer» C. 2 | |
| 6. |
What will be the function of the following command? |
| A. | |
| B. | replace * with | |
| C. | replace / with | |
| Answer» D. | |
| 7. |
Which of the following characters are used with sed as anchoring characters? |
| A. | $ |
| B. | ^ |
| C. | % |
| D. | $ and ^ |
| Answer» E. | |
| 8. |
To replace the string ‘director’ in the first five lines of file emp.lst with ‘manager’ we can use _____$ |
| A. | sed ‘s/director/manager/’ emp.lst |
| B. | sed ‘1-5s/director/manager/’ emp.lst |
| C. | sed ‘1,5s/director/manager/’ emp.lst |
| D. | sed ‘15s |
| Answer» D. sed ‚Äö√Ñ√∂‚àö√ë‚àö‚â§15s | |
| 9. |
Which one of the following command is used for replacing | with : globally? |
| A. | sed ‘s/|/:/’ emp.lst |
| B. | sed ‘/|/:/’ emp.lst |
| C. | sed ‘s/|/:/g’ emp.lst |
| D. | sed ‘s/ |
| Answer» D. sed ‚Äö√Ñ√∂‚àö√ë‚àö‚â§s/ | |
| 10. |
Which one of the following is the correct syntax for performing substitution using sed? |
| A. | sed [address]s /expr1/ expr2 |
| B. | sed [address]s /expr1 expr2 |
| C. | sed [address]s /expr1/ expr2/ flags |
| D. | sed [address]s |
| Answer» D. sed [address]s | |
| 11. |
sed can also perform the substitution. |
| A. | True |
| B. | False |
| Answer» B. False | |