To know the PID of your current shell, which command will be used?(a) echo $$(b) echo $(c) $SHELL(d) $PATHThe question was posed to me in an international level competition.The query is from Process Basics in portion The Process of Unix

To know the PID of your current shell, which command will be used?(a)

1.	To know the PID of your current shell, which command will be used?(a) echo $$(b) echo $(c) $SHELL(d) $PATHThe question was posed to me in an international level competition.The query is from Process Basics in portion The Process of Unix
Answer» The CORRECT ANSWER is (a) ECHO $$ To explain: The shell’s pathname is stored in SHELL, but it’s PID is stored in a SPECIAL variable, $$. To know the PID of our current shell, type

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To know the PID of your current shell, which command will be used?(a) echo $$(b) echo $(c) $SHELL(d) $PATHThe question was posed to me in an international level competition.The query is from Process Basics in portion The Process of Unix

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