Answer Posted / sachin tyagi

user mode is an area that is used to execute userlevel
commands .

But in kernel mode all the commands like device driver etc.
executes.

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768

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750

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790

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879

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What are file commands?

856

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When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

1968

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What are the general commands in using unix os for a beginner?

803

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797

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781

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Differentiate cat command from more command.

769

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783

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837

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What is grep r?

783

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What is the size of time_t?

891

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What command will change your prompt to myprompt?

911

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