Answer Posted / lakshmiprabha velusamy

mkdir <dir_name>

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

2207

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Who wrote grep?

1028

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What do chmod, chown, chgrp commands do?

1243

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Is command prompt unix?

1110

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How do I run a bash script?

1145

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What is the significance of the 'tee' command?

1173

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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:

2230

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How do I run a whois command?

1128

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Why is grep called grep?

1252

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What is rmdir command?

1066

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

1199

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Describe the usage and functionality of the command rm –r * in unix?

2030

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How do you grep recursively?

1078

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Does cp command overwrite files?

1155

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

1128

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