Пытаюсь освоить sed, помогите найти ошибку:
echo | sed 's/^/\/;h;s\/\\\\\/\\\\\\\\\/g;s\/\\\/\/\\\\\\\/\/g;G;s\/\\n\/\/;s\/^\/echo|sed s\\\/^\\\/\/;s\/ \/ \\d039\/;s\/$\/\\d039\/e;q/;h;s/\\/\\\\/g;s/\//\\\//g;G;s/\n//;s/^/echo|sed s\/^\//;s/ / \d039/;s/$/\d039/e;q'