Answer Posted / arjun

$? it will give the status of the previous command
it will give 0(zero) last command is successful else it will
give any non-zero character.

What is grep short for?

1055

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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:

2275

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What is .sh file?

1197

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What is the difference between awk and grep?

1272

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Which command can you use to find the currently running process in unix server?

1132

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Write a command to display a file’s contents in various formats?

1217

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What is grep and how do you use it?

1119

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Name the general commands in using unix os for a beginner?

1172

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What does awk stand for?

1094

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What do chown command do?

1204

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What are the differences among a system call, a library function, and a unix command?

1239

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Differentiate cmp command from diff command.

1181

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What are bash commands?

1177

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What are the commands in UNIX to list the files in a Directory?

1196

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Why is awk called awk?

1093

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