Ebook học linux đây các bạn
http://rapidshare.com/files/342491139/_Ebook__Red_Hat_Linux_Unleashed.zip
http://rapidshare.com/files/342492463/Learning_Red_hat_Linux.rar
hoặc đây
http://hotfile.com/links/26162890/a884b7f/_Ebook_20Red20Hat20Linux20Unleashed.zip.html
http://hotfile.com/links/26163404/be0fc28/Learning20Red20hat20Linux.rar.html