Answer Posted / santhosh

we have 3 modes i.e {vi editor}
1.inserted mode
2.extended mode
3.command mode
by default ur in command mode when entering into vi..
if want excute any command just steps are ..
go to command mode i.e ESC+:what command u wish that one
ex-- esc+:pwd
esc+:date

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:

2214

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Which command should you use to find the remaining disk space in unix server?

1250

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What is the use of egrep command in unix?

1140

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Why is grep called grep?

1239

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Which command is used to find whether the system is 32 bit or 64 bit?

1090

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What are file commands?

1183

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Explain mount and unmount command.

1158

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How do I open a port?

1046

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What is the use of tee command?

1094

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

1124

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What does grep v do?

1008

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What happens when we execute a unix command?

1099

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What is the difference between awk and grep?

1161

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What do chgrp command do?

1157

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Enumerate some of the most commonly used network commands in unix?

1121

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