09-GNU Linux (Working with files & directories in linux touch,cat,mkdir,ls) By Eng-Mohamed Bahaa El-Din | Arabic https://www.facebook.com/free4arab http://www.free4arab.com https://twitter.com/free4arab1 https://plus.google.com/113503705132872627915 نور الهدى لتكنولوجيا المعلومات