Answer Posted / rajasekar

rm -rf <directory name with path>

What is “chmod” command?

1238

---

Which unix command to make a new directory?

1189

---

Write a command to kill the last background job?

1150

---

Who command in unix operating system?

1188

---

Give the command for finding the current date.

1172

---

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

---

Explain command to show the space allocation of files?

1168

---

What does #!/ Bin sh do?

1115

---

How do I clear my terminal history?

1230

---

Write a command to display a file’s contents in various formats?

1246

---

How do you grep a case insensitive?

1112

---

Which command is used to find whether the system is 32 bit or 64 bit?

1196

---

How do I run a whois command?

1201

---

What is the search command in unix?

1131

---

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1448

---