This is a collection of links I've found to sed resources available on or via the Net. If you have anything to add, or you have any broken links to report, please email me.

Web sites

Sven Guckes home page

A page with lots of sed links. Many more useful links on perl, Lynx, vim, MUTT, SLRN and other utilities can be found at Sven's home page.

Felix von Leitner's sed page

Small and concise sed page by seder, Felix von Leitner.

Usenet

alt.comp.editors.batch

A recently formed group for discussing batch editing languages, tools, techniques and suchlike.

comp.editors

Start here.
Also available are the comp.editors FAQs (currently for vi and VIM only).

comp.lang.misc

Discusses compilers, tools & languages.
comp.lang.misc also has a catalogue. Currently, the only sed it lists is GNU sed, but there is a wealth of alternative utilities for all platforms. From the intro:

This list catalogues freely available software for language tools, which includes the following: compilers, compiler generators, interpreters, translators, important libraries, assemblers, etc. -- things whose user interface is a language. Natural language processing tools may also be included.

An up-to-date list is also available via ftp (~345k, multi-part) from ftp.idiom.com and sunsite.doc.ic.ac.uk.

comp.unix.shell

Problems incorporating sed in a shell script?

Mailing lists

seders

Al Aab's informal sed mailing list. Join us!

Binaries and source

• GNU sed
  The latest official version is 2.05. Release 3 was withdrawn. Available from GNU mirrors: worldwide, USA.

• GNU sed
  From Simtel:
  • GNU sed 1.06 (89kb).
  • GNU sed 2.05 (165kb). Requires emxrt.zip (525kb).

• GNU sed
  From Simtel:
  • GNU sed 2.05 (177kb).
• sedmod
  An enhanced sed. Features include:
  • \n, \t for embedded newline and tab
  • \U, \L, \E, etc for case conversion
  • $0 representing whole line before conversion
  • $1, $2, etc representing words
  • -i switch for case insensitive searching
  download (39kb)

• GNU sed
  Versions 1.15 through 2.05 are available from GNU mirrors: worldwide, USA. Version 1.06 (89kb) is available from Simtel.
• u-sedit2
  Download (76kb) from Garbo.
• W sed
  Tiny implementation with find and replace only.
  Download (37kb) from Garbo.
• sed15
  Slightly extended feature set.
  Available as binary+docs (20kb) or source only (65kb) from:
  • Simtel: binary+docs, source
  • sunsite.doc.ic.ac.uk: binary+docs, source.

Books

sed & awk (2nd edition)
See also: (1st edition)

By Dale Dougherty. Heavily reviewed, and considered by many to be the sed bible. The second edition deals with GNU sed. One of the unrivalled series of Nutshell Handbooks from O'Reilly & Associates.
Unfortunately, this books deals far more with awk than sed, but it is still a valuable resource, and indispensable for anyone who uses these two classic utilities seriously.
Check out the tutorials page for useful introductions and discussions on sed.