Why is shebang used?

599

What is the difference between cat command and more command?

601

Enlist some filename manipulation commands in unix.

556

What is the use of cut command in unix?

694

What is grep in bash?

589

Which unix command to make a new directory?

592

How do I open a port?

596

What does touch command do in unix?

733

How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

763

Which command is used to find whether the system is 32 bit or 64 bit?

633

What do know about tee command and its usage?

591

What difference between cmp and diff commands?

725

What is the command to find hidden files in the current directory?

587

Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

647

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:

1764