Answer Posted / narendra simha talluri

There are fairly 4 typical files, all related to editor:

1. the directory in which it recides(\bin)
2.the "binany" or runnable program itself(/bin/ed)
3.the "source" or C statement that define the program(/usr/src/cmd/ed.c) and
4.the manual page( /usr/man/man1/ed.1)

What is ctrl d?

602

---

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

699

---

What are the differences among a system call, a library function, and a unix command?

578

---

What is {} in find command?

590

---

How does the system know where one command ends and another begins?

1586

---

---

What command is used to switching between users in unix?

571

---

Is ‘du’ a command? If so, what is its use?

643

---

What is time_t?

596

---

Who command in unix operating system?

669

---

What is the use of sed command in unix?

608

---

What is grep in bash?

593

---

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:

1773

---

What is used to type command?

557

---

Name the various commands that are used for the user information in unix.

553

---

How do I open a port?

600

---