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 addresses•insert, remove, and mangle text•master file management and shell escapes•comprehend regular expressions, searches, and substitutions•create high-performance scripts for transforming files

You must be at least this competent to use this computer. Read Ed Mastery today!

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"I'm glad someone's finally giving ed the attention it deserves."

- Ken Thompson, co-creator of Unix

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