Answer Posted / siva

Try this command

$?

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

1237

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What is the use of sed command in unix?

1214

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How does shebang work?

1070

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What are awk commands?

1163

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What is the search command in unix?

1094

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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 is used to type command?

1064

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Explain ‘library functions’ with respect to unix commands?

1175

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What is the difference between awk and grep?

1254

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What is merge command in unix?

1514

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What are the general commands in using unix os for a beginner?

1175

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How can we use grep command in unix?

1216

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What are grep patterns?

1088

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What is unix command line?

1263

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What is grep short for?

1051

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