Level goal
The password for the next level is stored in a file called spaces in this filename located in the home directory.
Login
ssh bandit2@bandit.labs.overthewire.org -p 2220
263JGJPfgU6LtdEvgfWU1XP5yac29mFx
Doc
ls (1) - list directory contents
cat (1) - concatenate files and print on the standard output
Solution
Simply use " " on the file in order to parse the parameter as a string, then get the result using cat.
bandit2@bandit:~$ ls
spaces in this filename
bandit2@bandit:~$ cat "spaces in this filename"
MNk8KNH3Usiio41PRUEoDFPqfxLPlSmx