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This question already has an answer here:

I am getting Linux Training and came across one question that I am unable to find answer of:

What does the . mean in chmod command? Eg: chmod 777 .

marked as duplicate by Kusalananda linux Mar 21 at 20:39

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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. represents the current directory. Your mentioned command will give full permissions to everyone on your current directory. Similarly .. represents the parent directory (one directory up from the current). You can see these files by using ls -a

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