Answer Posted / eswar

head -n 1 filename

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

794

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Who wrote grep?

577

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Name the various commands that are used for the user information in unix.

537

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What is rmdir command?

546

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Are you in or at the office?

609

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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 do chmod command do?

600

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What does touch command do in unix?

721

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What is the use of awk command in unix?

574

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Using unix command how to display no of records in oracle?

602

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What is the use of cut command in unix?

688

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How can we use grep command in unix?

608

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Is grep faster than awk?

555

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What is merge command in unix?

940

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What is the general format of unix command syntax?

687

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