diff --git a/8-ubuntu/permission_command.md b/8-ubuntu/permission_command.md
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index af8c0f9..0000000
--- a/8-ubuntu/permission_command.md
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@@ -1,41 +0,0 @@
-# --------------------------بسم الله الرحمن الرحیم  -------------------------- #
-
-# Set Permissions Of Files and Folders #
-## Below gives all permissions to everybody to all files and subdirectories:##
-    $ sudo chmod -R a+rwx path
-> path like: /home/www/
-* for example folder home ...
-
-## write mode : ##  
-
-    $ sudo chmod 0777 path
-
-## read mode : ##
-
-    $ sudo chmod 0750 path
-
-* The surprising permissions that are diagnosed by this mode are:
->
-    111 => --xr-xrwx
-    400 => rw--w----
-    440 => rw-rwx---
-    444 => rw-rwxr--
-    551 => ---r--rwt
-    600 => --x-wx--T
-    640 => -w------T
-    644 => -w----r-T
-    660 => -w--w-r-T
-    664 => -w--wx--T
-    666 => -w--wx-wT
-    700 => -w-rwxr-T
-    711 => -wx---rwt
-    750 => -wxr-xrwT
-    751 => -wxr-xrwt
-    751 => -wxr-xrwt
-    755 => -wxrw--wt
-    770 => r------wT
-    771 => r------wt
-    775 => r-----rwt
-    777 => r----x--t
-
-Of these, only 400 is remotely plausible.
\ No newline at end of file