Answer Posted / yuvaevergreen

pg filename one page at a time.

What is s and g in sed command?

1080

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How do you grep a case insensitive?

1017

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What does this command do? Cat food 1 > kitty

1550

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Explain ‘system calls’ with respect to unix commands?

1067

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Why is grep called grep?

1251

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What is ‘ps’ command for?

1156

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Why is it called a shebang?

1136

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What are file commands?

1193

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What is unix command?

1224

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What command is used to check the current users?

1090

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What do know about tee command?

1129

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

1099

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What does the command '$ls | wc –l > file1' do?

1196

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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:

2229

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

1170

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