What is rmdir command?

561

What are the various schemes available in ipc?

563

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

806

Where unix is used today?

515

How to remove the directory in unix?

511

What is directory unix?

518

Is it possible to count number char, line in a file; if so, How?

728

What is unix operating system?

529

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:

1771

Differentiate swapping and paging.

495

How to write the program on full-duplex communication on bidirectional(e.g using two pipes)?

594

What is the difference between a single dot and double dot in unix?

722

Is grep faster than awk?

573

Describe the term inode?

633

explain about the initial process sequence while the system boots up?

623