If you want to see the the permission of a file you can use ls -l /path/to/file command.

For example

What does this mean ?

First - represents a regular file. It gives you a hint of the type of object it is. It can have following values.

• d (directory)

• c (character device)

• l (symlink)

• p (named pipe)

• s (socket)

• b (block device)

• D (door)

• - (regular file)

r represents read permission. w represents write permission and x represents executable permission.