Long listing format(ls -l)

  Regular (-)

  type file

   |

   |  allow to Write                Size        Day of the month

   |    |                            |           |

   |    |                            |           |

   -rw-rw-r--   1   sam    wheel     12   Oct    2   00:31   file.txt

    |           |                         |          |  |       \

  allow to Read |                         |          |  |        \

                |                        Month       |  |         \

               Link Count                            | Minute      \

                                                     |              Filename

                                                    Hour


   ......................................

   |  Numeric |  Symbol  |  Permission  |

   |  Value   |  Value   |              |

   ......................................

   |   4      |    r     |  Readable    |

   |   2      |    w     |  Writable    |

   |   1      |    x     |  Executable  |

   ......................................







  Directory (d)

  type file

   |

   |       none     Owner  Group

   |       |         |      |

   drwxrwxr-x   2   sam    wheel   4096   Oct    2   00:26   Folder

            |

          allow to eXecute



 

 

  Symbolic Link (l)

  type file                                                                Destination file

   |                                                                        |

   |                                                                        |

   lrwxrwxrwx   1   root   root      30   May   21   00:46   /vmlinuz -> /boot/vmlinuz-kernel

    |_|| || |                                                  |

  Owner| || |                                                  |

       |_|| |                                                 Symbolic link pointed to

     Group| |

          |_|

        Other



   Owner= User who hold the privilege to do any changes.

   Group= Users who are member of same Group.

   Other= Users who are not owner or member of that group.



 

  Character (c)

  type file

   |

   |

   crw-rw-rw-   1   root   root    1, 3   Aug   27   23:50   /dev/null

 

 



  Block (b)

  type file

   |

   |

   brw-rw----   1   root   disk    8, 0   Aug   27   23:50   /dev/sda



 

 

  Socket (s)

  type file

   |

   |

   srw-rw-rw-   1   root   root       0   Aug   27   23:50   /var/run/acpid.socket

 



 

  Pipe (p)

  type file

   |

   |

   prw-------   1   root   root       0   Aug   27   23:50   /var/run/dmeventd-server

 

 

 There are 7 types of file in Linux 

 .......................................

 |   Sign     |    File type           |

 .............|.........................

 |    -       |    Regular file        |

 |    d       |    Directory file      |

 |    l       |    Symbolic link file  |

 |    c       |    Character file      |

 |    b       |    Block file          |

 |    s       |    Socket file         |

 |    p       |    Pipe file           |

 .......................................