Answer Posted / jaga

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What does pipe () return?

768

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Which command is used to create a directory?

759

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What is the nmap command?

790

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

788

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How can we use grep command in unix?

818

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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:

1949

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What do know about tee command?

799

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How many unix commands are there?

803

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Who command in unix operating system?

843

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What do chmod, chown, chgrp commands do?

870

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What is grep and how do you use it?

766

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What is the command to compare two files in unix?

799

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What does the metacharacter mean?

791

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

845

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What is unix command line?

794

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