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The hint is that the password is in the only human-readable file in the inhere directory.

This is what the inhere directory looks like:

Directory listing of inhere

Now we could go through each file one by one, however it is quite an issue to get it to print. In order to get the 'human readable' text, we can use the strings command.

strings command output

In order to grow our skills, this seems like a great chance to use a bash one-liner.

for i in {0..9}; do echo "File ./-file0$i: $(strings './-file0'$i)"; done
# Breaking the oneliner down
for i in {0..9};do # for loop where i iterates over 0,1,2..9 
echo "File ./-file0$i: $(strings './-file0'$i)";
# echo formats output, strings prints readable items in file
done # end the for loop

And the output is as follows:

And now we learned a bit of bash scripting!