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Comment by timeattack | Hacker News Reader

  echo '3A2DD5E0D2C04F13A3E2F600C9530793' \
      | sed -r \
          -e 's/-//g' \
          -e 's/(\w{8})(\w{4})(\w{4})(\w{4})(\w{12})/\1-\2-\3-\4-\5/' \
      | tr '[A-F]' '[a-f]'

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True. Thank you, for sharing! Although it also supports the reverse option and could be easier to distribute (and keep in sync and up to date) between colleagues, and other people. But, yes, there could be multiple ways to do the same, and for that simple one using Go might overkill to some degree, but every approach has its own cons and pros.

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