Answer Posted / rahul rai

$:>cat > first
this is my first file.
my name is rahul rai.
i am doing MCA.

To rename file "first" with the name "second" we can use
the following command .

$:>rename first second first

$:>cat second
this is my first file.
my name is rahul rai.
i am doing MCA.

What is sed awk grep?

1186

---

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:

2317

---

Which unix command lists files/folders in alphabetical order?

1849

---

Why is grep called grep?

1360

---

What is the use of finger command?

1267

---

What is the nmap command?

1239

---

What is the difference between cat and more command?

1364

---

How many unix commands are there?

1206

---

How do you grep a case insensitive?

1112

---

What is unix command?

1320

---

What is grep command in unix with examples?

1291

---

What is the unix command to confirm a remote host is alive or not?

1278

---

What is the first character of the output in ls l command?

1262

---

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

1357

---

What is the use of sed command in unix?

1258

---