Answer Posted / narender

The unix operating system is resides in the kernel.Kernel
is one of the layer in unix, working as a communication
between the shell and hardware layers.

What is the first character of the output in ls l command?

1259

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What happens when we execute a unix command?

1194

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What is the comma to display different lines that are found when compare two files?

1241

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Who wrote grep?

1106

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How do I run a whois command?

1200

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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:

2315

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What is time_t?

1161

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What is {} in find command?

1154

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What does touch command do in unix?

1474

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What does awk stand for?

1143

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Why is it called grep?

1084

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What is rmdir command?

1151

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What do know about tee command and its usage?

1243

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How does the system know where one command ends and another begins?

2311

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How can we use grep command in unix?

1259

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