Answer Posted / praveen

unix is a multiuser and &windowsdoesnotsupport themultiuser
it is singleuser.
in unix operatorwecan use the commandsinunix operatorcannot
use the commands.

What does touch command do in unix?

723

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What is used to type command?

539

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What is the significance of the 'tee' command?

594

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Explain ‘system calls’ with respect to unix commands?

598

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Does cp command overwrite files?

620

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What is the general format of unix command syntax?

688

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What is a command and examples?

578

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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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How do you grep a case insensitive?

537

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Differentiate cmp command from diff command.

586

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

604

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What does the metacharacter mean?

608

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

629

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What does #!/ Bin sh do?

587

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Are you in or at the office?

609

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