Engineering, 18.12.2019 19:31 chrisroman152
Write a program called minishell that creates two child processes: one to execute 'ls -al' and the other to execute ‘grep minishell. c’. after the forks, the original parent process waits for both child processes to finish before it terminates. the parent should print out the pid of each child after it finishes. the standard output of 'ls -al' process should be piped to the input to the 'grep minishell. c' process. make sure you close the unnecessary open files for the three processes. the output should be the one line that includes the directory entry for minishell. c. you will need to call the source file minishell. c for this to work properly.
Answers: 3
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 18:10
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
Answers: 2
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
Answers: 2
Write a program called minishell that creates two child processes: one to execute 'ls -al' and the...
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