What does $? Mean in unix?

959

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What is difference between find and grep in unix?

944

---

What is unix file?

928

---

What is meant by the term nohup?

929

---

Which command is used to restrict incoming messages?

1100

---

What is Process id in unix?

1001

---

What is the use of finger command?

1207

---

Explain mount and unmount command.

1209

---

What does the swapping system do if it identifies the illegal page for swapping?

1051

---

What is the difference between command and utility in unix?

924

---

How do you go to a directory in unix?

878

---

What is a shell?

939

---

Describe file systems in unix?

1028

---

List a few significant features of unix?

1053

---

How to list directories in unix?

988

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