Answer Posted / rakesh

unix has a interface between user and kernal(hardware)
called as shell . Which is very important and this is why
we dont here any virus attacks on unix but in windows we
dont have any shell user can directly communicate to
hardware and hence virus occurs

How do I use grep to search for a file?

576

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What does find command return in unix?

582

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Explain the steps that a shell follows while processing a command.

674

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What is the use of find command in unix?

570

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What is used to type command?

533

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

575

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What is .sh file?

611

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Differentiate cmp command from diff command.

580

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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:

1749

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What is the use of egrep command in unix?

617

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Is ‘du’ a command? If so, what is its use?

623

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What does awk stand for?

601

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How do I use nslookup?

566

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What is a command and examples?

571

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What do know about tee command and its usage?

580

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