Answer Posted / madhusudhan

pipe: pipe is used to redirect the output to the input of an
another command.

to see oracle processes.
ps -ef | grep SIDNAME

Here grep will find the sidname and the output of grep will be used as input to display processes.

tee : using tee we can send the output to
a new file at the same time we can see the output on the
screen

What is ctrl d?

1103

---

What does grep v grep do?

1083

---

Who command in unix operating system?

1142

---

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:

2273

---

What are filter commands in unix?

1204

---

What is grep short for?

1051

---

What is the use of egrep command in unix?

1196

---

What is the comma to display different lines that are found when compare two files?

1164

---

What is ‘ps’ command for?

1188

---

What is in grep command?

1176

---

Describe the zip/unzip command using gzip.

1162

---

What is grep and how do you use it?

1118

---

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

2259

---

How does shebang work?

1073

---

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

1153

---