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Pipe: Review Questions
Question numbers subject to change
Use POSIX pipe dup2 and close to implement an autograding program. Capture the standardoutput of a child process into a pipe. The child process should exec the program ./test with no additional arguments (other than the process name). In the parent process read from the pipe: Exit the parent process as soon as the captured output contains the ! character. Before exiting the parent process send SIGKILL to the child process. Exit 0 if the output contained a !. Otherwise if the child process exits and closes the pipe then exit with a value of 1.
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