Answer Posted / linuxdemon

It is an core of the operating systems, coz it will handle
all the critical tasks like memory management,process
management, device management..etc.

What's a command word?

585

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Why is it called a shebang?

568

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How do I run a bash script?

580

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What does grep v grep do?

550

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What is the unix command to confirm a remote host is alive or not?

579

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What is the command to find hidden files in the current directory?

579

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How do I search a whole word in vim?

688

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How does pipe () work?

592

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What is grep command in unix with examples?

604

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What difference between cmp and diff commands?

720

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Explain ‘library functions’ with respect to unix commands?

601

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What are reported commands?

562

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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 is grep and how do you use it?

572

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What is time_t?

584

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