Answer Posted / jonu

fg

Typing fg alone will resume the first job were it was left off.

fg 1

Specifying the job id (in this case 1) will resume that particular job. The job id can be determined by running the bg command.

Who command in unix operating system?

1102

---

What is grep and how do you use it?

1074

---

How do I open a port?

1048

---

Why is shebang used?

1065

---

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

1164

---

How do I run a bash script?

1143

---

What does the metacharacter mean?

1103

---

What are the unix commands?

1051

---

What is unix command?

1214

---

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:

2221

---

What does the command ' $who | sort –logfile > newfile' do?

1250

---

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

1094

---

What is the functionality of a top command?

1071

---

Describe the usage and functionality of the command rm –r * in unix?

2007

---

What are grep patterns?

1039

---