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Unix - Section 1 Multiple Questions and Answers.
| 52. | 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? | ||
| 53. | Which command is used to remove a directory? | ||
| A. | rd | ||
| B. | rmdir | ||
| C. | dldir | ||
| D. | rdir | ||
| 54. | Which of the following keys is used to replace a single character with new text? | ||
| A. | S | ||
| B. | s | ||
| C. | r | ||
| D. | C | ||
| 55. | Which command is used to extract specific columns from the file? | ||
| A. | cat | ||
| B. | cut | ||
| C. | grep | ||
| D. | paste | ||
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