Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 52222f6ea98cbe0002000078

Letter case trickery

This file is in a downright esoteric format, consisting of hexadecimal numbers, non-hexadecimal keywords, and "Z" indicating end-of-line. Make the hexadecimal numbers lowercase.

Start file
2B A9 NE F2Z
End file
a4e SUM 3c0Z
2b a9 NE f2Z

View Diff

< A4E SUM 3C0Z
< 2B A9 NE F2Z
> a4e SUM 3c0Z
> 2b a9 NE f2Z

Solutions by @braxler:

Unlock 2 remaining solutions by signing in and submitting your own entry
Created by: @NbTson

498 active golfers, 1547 entries

Solutions by @braxler:
#3 - John Braxler / @braxler

04/22/2016 at 07:00PM

#>62 - John Braxler / @braxler

11/25/2013 at 09:27PM