Which special shell variable represents the process ID of the current shell?

Show Answers

The process ID of the last background command ($!)The process ID of the current shell ($$)The name of the shell script or command (0)All positional parameters ($*)None of the above

Explanation

In shell scripting, the variable $$ holds the process ID of the current shell. Option A ($!) refers to the last background process ID, option C (0) is the script name, and option D ($*) represents all positional parameters.