Answer Posted / nikhitha.k.pillai

functionality of kernel includes 4 features.
1.Process management
2.Memory management
3.I/O Management
4.Support functions

Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

760

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What is the general format of unix command syntax?

781

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What do know about tee command?

685

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Why is it called a shebang?

678

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Which command is used to find whether the system is 32 bit or 64 bit?

715

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What is sed awk grep?

686

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Write a command to display a file’s contents in various formats?

712

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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:

1850

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Which command is used to copy files?

660

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What are the general commands in using unix os for a beginner?

681

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What are grep patterns?

674

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Is ‘du’ a command? If so, what is its use?

717

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What is merge command in unix?

1016

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What do chgrp command do?

700

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What is the use of cut command in unix?

810

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