Answer Posted / nayakss

Copy of shell or copy of shell variable?

Shell is a process which is invoken when a user logged in.
So For each use a differ process has invoked in turns a
different shell.

What is s and g in sed command?

554

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What does grep v do?

556

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What does the md command do?

564

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What are the differences among a system call, a library function, and a unix command?

563

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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:

1754

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What do know about tee command and its usage?

583

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Enlist some filename manipulation commands in unix.

544

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What is command statement?

539

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What is ctrl d?

589

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Explain command to display different lines that are found when compare two files?

674

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What are reported commands?

560

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What is the behavioural difference between cmp and diff commands?

670

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How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

757

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How do I search for a file in unix command?

541

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Are you in or at the office?

609

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