The desirable features of a new shell script you write is that
| A. | It should take its input from stdin |
| B. | It does some cleaning up operation, on termination |
| C. | It should not accept command line arguments |
| D. | Both (a) & (b) |
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Option: D Explanation : Click on Discuss to view users comments. |
Which of the following shell commands displays the contents of each of the command line arguments one by one
| A. | cat $• |
| B. | cat "$@" |
| C. | Both (a) & (b) |
| D. | cat "$•" |
|
Option: C Explanation : Click on Discuss to view users comments. |
The disadvantage of a pipe is that
| A. | It is a one way communication channel |
| B. | It dies along with the process that created it |
| C. | It can't he shared by unrelated processes |
| D. | All of these |
|
Option: D Explanation : Click on Discuss to view users comments. |
