Permissions:
r → read      (view contents)
w → write     (modify contents)
x → execute   (run or enter directory)
- → nothing   (no soup for you)

Position: 0123456789
          -rw-r--r--

0:   dash for regular files, d for directory
123: the owner permissions triplet, rwx
456: the group permissions triplet, rwx
789: the world permissions triplet, rwx