Carsten Strotmann is a user on mastodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
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The world has been waiting for this moment: @mwlucas has written and published a book about ed (the original Unix editor)
"ed Mastery"
https://www.michaelwlucas.com/tools/ed
Excuse me, I need to read now ...
