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Unix - Section 1 Multiple Questions and Answers.
| 1. | Which symbol will be used with grep command to match the pattern pat at the beginning of a line? | ||
| A. | ^pat | ||
| B. | $pat | ||
| C. | pat$ | ||
| D. | pat^ | ||
| 2. | Which command is used to sort the lines of data in a file in reverse order | ||
| A. | sort | ||
| B. | sh | ||
| C. | st | ||
| D. | sort -r | ||
| 3. | Which command is used to display the top of the file? | ||
| A. | cat | ||
| B. | head | ||
| C. | more | ||
| D. | grep | ||
| 5. | Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3? | ||
| A. | chmod u+x emp[1-3] | ||
| B. | chmod 777 emp* | ||
| C. | chmod u+r ??? emp | ||
| D. | chmod 222 emp? | ||
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