Which of the following statement is true ?

Question

Admin · Accepted Answer

echo $$ return PID of login shell and echo $? return status of last command

Admin · Answer

echo $$ and echo $? return some integer value of no significance

Admin · Answer

echo $$ return status of last command and echo $? return PID of login shell

Admin · Answer

All of the statements are false

Q. Which of the following statement is true ?