Answer Posted / samrat biswal

Test is a condition evaluation command.The test command
evaluates the expression if the value is True,returns a
zero exit status; otherwise,a nonzero exit status is
returned.test also returns a nonzero exit status if there
are no arguments.

What is rmdir command?

792

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

804

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783

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What do chgrp command do?

828

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902

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788

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775

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905

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801

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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:

1975

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What is time_t?

784

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885

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What is grep short for?

749

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What are reported commands?

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Who wrote grep?

771

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