Hints
1. Any hints about entering a command into the Terminal (such as the next one), will start with a '$'... everything after the dollar sign will be typed (or copy and pasted) into your Terminal.
2. To get the file accessible in your shell, enter the following in the Terminal prompt: $ wget https://mercury.picoctf.net/static/a5683698ac318b47bd060cb786859f23/flag
3. $ man cat
解題步驟
1. 在終端中執行wget https://mercury.picoctf.net/static/a5683698ac318b47bd060cb786859f23/flag。
2. 然後執行cat flag，flag將顯示在終端上。
Useful Stuffs
1. https://blog.gtwang.org/linux/linux-wget-command-download-web-pages-and-files-tutorial-examples/
2. https://blog.gtwang.org/linux/linux-man-page-command-examples/
3. https://www.geeksforgeeks.org/cat-command-in-linux-with-examples/
