Answer Posted / barani kannan

Kernel is the only thing which communicates with the
hardware. In other means kernel is high level language to
low level language and vice versa

Name the unix command to find how many days the server has been up.

1206

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What is the functionality of a top command?

1155

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What command is used to switching between users in unix?

1124

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What will the following command do?

1172

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Name the various commands that are used for the user information in unix.

1130

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What happens when we execute a unix command?

1194

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How does pipe () work?

1139

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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 does the metacharacter mean?

1187

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What command will change your prompt to myprompt?

1382

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What is awk command used for?

1325

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What is the command to find maximum memory taking process on the server?

1262

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What does grep v do?

1098

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What are some command words?

1198

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Which command is used to delete all files in the current directory and all its sub-directories?

1315

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