"I'm glad someone's finally giving ed the attention it deserves."--Ken Thompson, co-creator of UNIXLet me be perfectly clear; ed is the standard Unix text editor. If you don't know ed, you're not a real sysadmin.Forty years after ed's introduction, internationally acclaimed author Michael W Lucas has finally unlocked the mysteries of ed for everyone. With Ed Mastery, you too can become a proper sysadmin.Ed Mastery will help you: understand buffers and addressesinsert, remove, and mangle textmaster file management and shell escapescomprehend regular expressions, searches, and substitutionscreate high-performance scripts for transforming filesYou must be at least this competent to use this computer. Read Ed Mastery today!