Answer Posted / karunakar

os is a software which acts has interface between user and
hardware

Explain command to view process running?

820

---

What do chmod command do?

819

---

Explain the steps that a shell follows while processing a command.

923

---

What is grep and how do you use it?

794

---

How does shebang work?

812

---

What is the difference between grep and grep?

804

---

What does grep v grep do?

770

---

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

850

---

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:

1979

---

What is grep short for?

750

---

What is awk good for?

798

---

Give the command for finding the current date.

772

---

What does touch command do in unix?

990

---

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

1516

---

Who command in unix operating system?

862

---