strings it

Download the file:

curl -s https://jupiter.challenges.picoctf.org/static/5bd86036f013ac3b9c958499adf3e2e2/strings -o strings

Strings is a tool in Linux that will only print printable characters in a file, with other features.

strings strings

But it is hard to get the flag that way, because the file is so big.

We can use grep in this case:

strings strings | grep 'picoCTF{' --color=never

That is the flag.