Answer Posted / suitable

uniq command removes the duplicate lines from the sorted
file and display on the standard output. the original file
remains unchanged.

Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

580

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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:

1749

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Who invented grep?

643

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What are the commands in UNIX to list the files in a Directory?

606

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What is grep r?

580

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How do I search for a file in unix command?

539

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What is the use of find command in unix?

572

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How can you see the command line history?

578

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What is a bash command?

620

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What is the first character of the output in ls l command?

625

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What are the general commands in using unix os for a beginner?

575

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Why is shebang used?

587

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Name the general commands in using unix os for a beginner?

613

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Describe the zip/unzip command using gzip.

603

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Explain command to display different lines that are found when compare two files?

671

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