Answer Posted / suryakanta

rm-rf directoryname
this will remove the directory forcefully from unix.

What are awk commands?

582

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What is the nmap command?

583

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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:

1762

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What command is used to check the current users?

594

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What are the differences among a system call, a library function, and a unix command?

567

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Is ‘du’ a command? If so, what is its use?

639

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Why is shebang used?

595

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Write a command to kill the last background job?

618

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What is ‘ps’ command for?

616

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What command will change your prompt to myprompt?

704

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How do I open a port?

596

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Describe the usage and functionality of the command rm –r * in unix?

822

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Explain command to show the space allocation of files?

629

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What is time_t?

586

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What is the search command in unix?

603

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