Answer Posted / raam

operating system is an interface between user and the
system. in other words, it is a mediator between user and
the system.

What is the use of tee command?

1143

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how to sort the content of the file based on numeric values

1766

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What does grep v do?

1039

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Which command is used to restrict incoming messages?

1092

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What is the behavioural difference between cmp and diff commands?

1268

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What is the general format of unix command syntax?

1903

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Give the command for finding the current date.

1097

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What does pipe () return?

1063

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What are some command words?

1126

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Which unix command lists files/folders in alphabetical order?

1733

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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:

2252

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What command is used to switching between users in unix?

1073

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What is ctrl d?

1084

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What does 'mkdir' command do in UNIX?

1300

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How do I use grep to search for a file?

1048

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