ls

Surprised seeing LS here, well i am surprised when i have been asked define all classification of file indicated while using -F.
here i am after reffering to man page.

File: -F

*   = regular files that are executable
/   = file type indicators for directories
@   = for symbolic links
|   = for FIFOs
=   = for sockets
>   = for doors
nothing = for regular files.