Answer Posted / jomon

multiuser -different user can work together via different terminals of the computer
time sharing - different users can work with one proceessing unit in the diffrent of time slice( round- robin)

What are the commands in UNIX to list the files in a Directory?

1107

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What does find command return in unix?

1098

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Explain command to display different lines that are found when compare two files?

1106

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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:

2202

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Is grep faster than awk?

987

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How do I run a whois command?

1099

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What is merge command in unix?

1443

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What is the size of time_t?

1148

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What is the use of the tee command?

1054

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What is the difference between cat and more command?

1225

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What is “chmod” command?

1097

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Can you explain a little bit about command substitution?

1062

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What is the use of sed command in unix?

1139

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What is the nmap command?

1121

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What is the behavioural difference between cmp and diff commands?

1212

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