Shell Foundation 1: File Security and Permissions
Http://bbs.chinaunix.net/forum/viewtopic.php?t=434579&highlight=wingger
Attached: Linux user and user group management
Http://bbs.chinaunix.net/forum/viewtopic.php?t=438660&highlight=wingger
Shell Basics II: Find tips, use of Find and Xargs
Http://bbs.chinaunix.net/forum/viewtopic.php?t=441883&highlight=wingger
Shell Basics Three and four: Backstage (Crontab,at,&,nohup) and (*,?, [] etc.)
Http://bbs.chinaunix.net/forum/viewtopic.php?t=442596&highlight=wingger
Shell Basics V: Inputs and outputs (echo,read,cat, pipes, tee, redirects, etc.)
Http://bbs.chinaunix.net/forum/viewtopic.php?t=444209&highlight=wingger
Shell Foundation six or Seven: Command execution order (| | and &&,{} and ()) and the regular table?
Http://bbs.chinaunix.net/forum/viewtopic.php?t=445229&highlight=wingger
Shell Basics Eight: Text Filtering tool (grep)
Http://bbs.chinaunix.net/forum/viewtopic.php?t=446683&highlight=wingger
Http://bbs.chinaunix.net/forum/viewtopic.php?t=448687&highlight=wingger
Shell Basics IX: awk
Http://bbs.chinaunix.net/forum/viewtopic.php?t=452942&highlight=wingger
Shell Foundation ten: SED
Http://bbs.chinaunix.net/forum/viewtopic.php?t=457730&highlight=wingger
Base 11: File classification, merging, and splitting (Sort,uniq,join,cut,paste,split)
Shell Foundation 12: TR
Http://bbs.chinaunix.net/forum/viewtopic.php?t=459099&highlight=wingger
Http://bbs.chinaunix.net/thread-448687-1-1.html
Shell Basics (RPM)