SED, the Stream Editor Eric Pement's Cornerstone Mag site hosts an extensive FAQ, download sites for most operating systems, large list of handy one-liners, table of version differences, exhaustive links.
SED & AWK The most popular book on the stream editor, from O'Reilly.
SED FAQ (He Sed She Sed) Dreamwvr.com's alternate frequently asked questions list is arranged in increasing order of difficulty, and can be read as a tutorial.
SED Tutorials Some items selected by Yiorgos Adamopoulos from the Seders grab bag and mailing list.
Sokoban for SED The timeless Sokoban game written in a SED script.
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