Answer Posted / payal

wc command counts the number of lines,words and characters
present in a file.

Differentiate cat command from more command.

574

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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:

1758

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What does grep v grep do?

547

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How to use grep command to list find the records of a file containing 10 different strings?

643

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What is merge command in unix?

942

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

627

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Explain mount and unmount command.

609

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What is .sh file?

614

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Can you explain a little bit about command substitution?

605

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How does shebang work?

584

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What is the behavioural difference between cmp and diff commands?

670

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What is the use of awk command in unix?

577

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What is grep in bash?

582

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What are some command words?

558

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What does 'mkdir' command do in UNIX?

657

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