Answer Posted / rabindra mishra

sed 'n,n+1,n+2/d' file1> file2

What do chown command do?

1138

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Which command will print your home directory on screen?

1058

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What is ctrl d?

1062

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How can we use grep command in unix?

1162

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Is ‘du’ a command? If so, what is its use?

1112

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What difference between cmp and diff commands?

1275

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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:

2221

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What is the use of egrep command in unix?

1144

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

1166

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Which unix command lists files/folders in alphabetical order?

1700

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What is command substitution?

1298

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What is time_t?

1076

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

1092

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How do I search for text in vi?

1003

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What is the unix command to confirm a remote host is alive or not?

1170

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