owner permissions | Does the owner have read/write/execute permissions? |
group permissions | Do other members of the same group have read/write/execute permissions? |
world permissions | Does anyone (or any program) with an account on this machine have read/write/execute permissions? |
ls -l filename
-rw-rw-r-- filename -rwxrwxr-- filename -rw------- filename drwxrwxr-x directoryName
man chmod