MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
$# is used to show? |
| A. | The number of arguments supplied to a script. |
| B. | The filename of the current script. |
| C. | The exit status of the last command executed. |
| D. | The process number of the last background command |
| E. | |
| Answer» B. The filename of the current script. | |
| 2. |
We cannot use the unset command to unset variables that are marked ____________. |
| A. | read |
| B. | write |
| C. | readonly |
| D. | writeonly |
| Answer» D. writeonly | |
| 3. |
Which keyword is used to remove the variable? |
| A. | remove |
| B. | readonly |
| C. | unset |
| D. | delete |
| Answer» D. delete | |
| 4. |
How many prompt shell has? |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 5 |
| Answer» C. 3 | |
| 5. |
Which of the following command is used to display the environment variables only? |
| A. | sh |
| B. | set |
| C. | env |
| D. | var |
| Answer» D. var | |
| 6. |
Whch of the following is invalid variable names? |
| A. | VAR_1 |
| B. | _ALI |
| C. | VAR1 |
| D. | VAR_A! |
| Answer» E. | |
| 7. |
Unix shell variables will have their names in _____. |
| A. | Uppercase |
| B. | Lowercase |
| C. | First character Uppercase and all other character Lowercase |
| D. | First character Lowercase and all other character Uppercase |
| Answer» B. Lowercase | |
| 8. |
The name of a variable can contain ________. |
| A. | numbers |
| B. | letters |
| C. | underscore character |
| D. | All of the above |
| Answer» E. | |