Answer Posted / dibya lochan giri

to see the last 99 lines in a log file you can use the cmd
$ tail -99f <file name>

What is the use of the command 'ls -x chapter[1-5]' ?

659

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What is rmdir command?

547

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Explain command to view process running?

611

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What is command statement?

540

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What is the use of the tee command?

596

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What is grep in bash?

582

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What command will change your prompt to myprompt?

696

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How do you grep a case insensitive?

536

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What is the use of egrep command in unix?

624

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Is grep faster than awk?

556

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What happens when we execute a unix command?

597

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What is the search command in unix?

597

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What is grep short for?

554

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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 is the use of cut command in unix?

688

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