Answer Posted / brajesh kumar

for removing directory
rm -rf *
for all dir

What is ‘ps’ command for?

1240

---

What is the nmap command?

1239

---

What is $0 bash?

1255

---

Can you enlist some commonly used network commands?

1156

---

Which command is used to kill the last background job?

1392

---

Does cp command overwrite files?

1267

---

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

1287

---

What is awk used for?

1179

---

What are the general commands in using unix os for a beginner?

1219

---

What are grep patterns?

1148

---

What is pipe command in unix?

1363

---

What is the use of sed command in unix?

1258

---

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

---

What is the use of cut command in unix?

1427

---

What is the search command in unix?

1133

---