Q. Which of the following statement is true ? (A) echo $$ and echo $? return some integer value of no significance (B) echo $$ return PID of login shell and echo $? return status of last command (C) echo $$ return status of last command and echo $? return PID of login shell (D) All of the statements are false 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) echo $$ return PID of login shell and echo $? return status of last command