Answer Posted / rasshmi

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What is s and g in sed command?

1120

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Does cp command overwrite files?

1208

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

1223

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What is awk command used for?

1242

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How do I search for text in vi?

1048

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What is the difference between awk and grep?

1254

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Differentiate cmp command from diff command.

1172

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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:

2272

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What does 'mkdir' command do in UNIX?

1314

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What is the nmap command?

1192

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Which command is used to kill the last background job?

1337

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

2105

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Explain command to display different lines that are found when compare two files?

1182

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Why is awk called awk?

1080

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What happens when we execute a unix command?

1147

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