Answer Posted / quadri

windows only does not support multi user concept,
where as Unix supports multi tasking,processing,and multi
user concepts.

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:

2273

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Explain mount and unmount command.

1226

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Can you explain a little bit about command substitution?

1118

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What is the difference between grep and grep?

1137

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What is grep r?

1107

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What is the use of tee command?

1169

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Does cp command overwrite files?

1208

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What is the functionality of a top command?

1114

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What is ‘ps’ command for?

1187

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How many unix commands are there?

1158

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What does pipe () return?

1077

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What are bash commands?

1169

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What's a command word?

1182

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What is awk good for?

1144

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

2561

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