encrypted_scroll.txt 内のすべての pharaoh's_treasure を treasure_found に置換するコマンドはどれですか？
encrypted_scroll.txt
pharaoh's_treasure
treasure_found
grep -o 'treasure_found' encrypted_scroll.txt
sed -i "s/pharaoh's_treasure/treasure_found/g" encrypted_scroll.txt
sed -i encrypted_scroll.txt treasure_found
sed -i "s/treasure_found/pharaoh's_treasure/g" encrypted_scroll.txt