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* 다음의 글은 2019년 10월에 겪은 일로 타 블로그에 올린바 있습니다. Command Line : tool for interacting with a computer using only text. is used in Linux and macOS -create a file $ touch file_name $ touch html.txt -display a file $ cat file_name $ cat html.txt -tab completion : auto-completion -create a directory $ mkdir directory_name $ mkdir beginner - move $ cd drectory_name (change directory) $ cd beginner $ cd.. : ..