Answer Posted / megha more.

There are 4 types files in unix.
1. Regular files.
2. Directory files.
3. Device files.
4. Pipe files.

What are some command words?

1081

---

What does this command do,"$more readme.txt“?

1099

---

What command will change your prompt to myprompt?

1247

---

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:

2201

---

What happens when we execute a unix command?

1086

---

What does 'mkdir' command do in UNIX?

1237

---

What is the use of tee command?

1071

---

Explain ‘library functions’ with respect to unix commands?

1112

---

What is updatedb?

989

---

Enumerate some of the most commonly used network commands in unix?

1102

---

What is grep and how do you use it?

1045

---

What is the use of cut command in unix?

1290

---

What does find command return in unix?

1097

---

What is grep in bash?

1005

---

What is time_t?

1054

---