Answer Posted / shubh

Unix Window

* It is hierachile model. It is a flat model.
* It is CUI. It is a GUI.
* It is command base. It is menu base.
* It is not event driven. It is event driven.
* It is multi-processor. It is not multiprocessor
* Free sourced OS. Licensed OS.
* It doesn't have registry It is having registry
concept. concept.

Differentiate cat command from more command.

793

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Differentiate cmp command from diff command.

813

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What is the difference between grep and grep?

804

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Can you explain a little bit about command substitution?

830

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What are grep patterns?

779

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How can we use grep command in unix?

853

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What is the use of egrep command in unix?

839

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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:

1986

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What command is used to switching between users in unix?

779

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What is merge command in unix?

1154

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What is the behavioural difference between cmp and diff commands?

895

---

Give the command for finding the current date.

780

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Describe the usage and functionality of the command rm –r * in unix?

1582

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Explain mount and unmount command.

855

---

What is command statement?

799

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