linux - What are the column heading for this "-rwxr-xr-x 1 root root 920788 Mar 28 2013 bash" when I do "ls -l" in the Ubuntu terminal -

i executed command "ls -l" in ubuntu terminal, understand "ls -l" long listing in ubuntu, don't understand columns example: (this first line)

-rwxr-xr-x  1   root    root    920788  mar 28 2013 bash 

how find out column headings above?

the columns :

• permissions (owner, group. all)
• links
• owner
• group
• size in bytes
• time of last modification
• name

so "-rwxr-xr-x 1 root root 920788 mar 28 2013 bash" means:

• user root has permissions rwx (read, write, execute).
• group root has permissions r-x (read , execute).
• everybody has permissions r-x (read , execute).
• the file has 1 hard link.
• the owner root.
• the group root.
• size 920788 bytes.
• last modified in march 28, 2013.
• the file name bash.