Answer Posted / yuvaevergreen

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How do I open a port?

588

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What is the use of finger command?

595

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How do I run a whois command?

596

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How do I delete files from command prompt?

549

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What is the command to find maximum memory taking process on the server?

667

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Who invented grep?

649

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Why is grep called grep?

773

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

566

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How do I search for text in vi?

584

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What happens when we execute a unix command?

597

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What is sed awk grep?

600

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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:

1758

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What does this command do? Cat food 1 > kitty

974

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What is the use of tee command?

567

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What is pipe command in unix?

668

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