Answer Posted / indrasis roy

An operating system is
a master control
program which runs
the computer and act
as a schedular.
It act as an
interferance between
the application
software and the
machine hardware

How does pipe () work?

1079

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Write a command to kill the last background job?

1093

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What is grep and how do you use it?

1097

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What are the commands in UNIX to list the files in a Directory?

1165

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Explain the steps that a shell follows while processing a command.

1220

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What do know about tee command and its usage?

1165

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What does this command do,"$more readme.txt“?

1148

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How do I search a whole word in vim?

1166

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What does #!/ Bin sh do?

1061

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What is {} in find command?

1093

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

1193

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Enumerate some of the most commonly used network commands in unix?

1152

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What is unix command?

1242

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Name the general commands in using unix os for a beginner?

1139

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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:

2252

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