Which of the following metacharacters will be recognized by the shell. even if it comes within double quotes?
A. | $ |
B. | * |
C. | ? |
D. | None of the above |
Option: A Explanation : Click on Discuss to view users comments. |
lint should be used
A. | before compilation |
B. | to analyze a C code |
C. | after compilation |
D. | Both (a) and (b) |
Option: D Explanation : Click on Discuss to view users comments. |
Environment variables can be accessed by
A. | system programs |
B. | C programs |
C. | shell scripts |
D. | All of these |
Option: D Explanation : Click on Discuss to view users comments. |
Which of the following are character special files
A. | Terminal |
B. | Printer |
C. | Modem |
D. | All of these |
Option: D Explanation : Click on Discuss to view users comments. |
If one exports a variable
A. | Variables placed in the environment by a child process are not inherited by the parent process |
B. | It is passed to all its descendant processes |
C. | It dies when the shell that created it dies |
D. | All of these |
Option: D Explanation : Click on Discuss to view users comments. |