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.

Explain mount and unmount command.

607

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what is the advaantage of each user having its own copy of the shell?

2022

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What do chmod, chown, chgrp commands do?

624

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What difference between cmp and diff commands?

713

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Which command will print your home directory on screen?

536

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How do I search for text in vi?

575

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Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

580

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What are reported commands?

556

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How can we use grep command in unix?

606

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What is the size of time_t?

635

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How do I clear my terminal history?

573

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What is in grep command?

636

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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 difference between cat and more command?

618

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What does 'mkdir' command do in UNIX?

649

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