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 5e4dfcccaa2db400090b66c3

prepend * to every non-blank line

Prepend an asterisk to every non-blank line in the input file.

Start file

This is a
very short

file, but it is 
still
full

of

surpises.

End file

*This is a
*very short

*file, but it is 
*still
*full

*of

*surpises.

View Diff

1,2c1,2
< This is a
< very short
---
> *This is a
> *very short
4,6c4,6
< file, but it is 
< still
< full
---
> *file, but it is 
> *still
> *full
8c8
< of
---
> *of
10c10
< surpises.
---
> *surpises.

Solutions by @pkeugine:

Created by: @johnreitano Tweet

1517 active golfers, 6208 entries

Solutions by @pkeugine:

10

#229 - PK / @pkeugine

07/10/2020 at 05:12AM

10

#>229 - PK / @pkeugine

07/10/2020 at 05:14AM

11

#>588 - PK / @pkeugine

07/10/2020 at 05:10AM

11

#>588 - PK / @pkeugine

07/10/2020 at 05:11AM

12

#>774 - PK / @pkeugine

07/10/2020 at 05:10AM

13

#>818 - PK / @pkeugine

07/10/2020 at 05:09AM

14

#>857 - PK / @pkeugine

07/10/2020 at 05:07AM

15

#>942 - PK / @pkeugine

07/10/2020 at 05:07AM

15

#>942 - PK / @pkeugine

07/10/2020 at 05:07AM

16

#>1026 - PK / @pkeugine

07/10/2020 at 05:05AM

16

#>1026 - PK / @pkeugine

07/10/2020 at 05:05AM

18

#>1153 - PK / @pkeugine

07/10/2020 at 05:03AM

20

#>1259 - PK / @pkeugine

07/10/2020 at 05:00AM

38

#>1499 - PK / @pkeugine

07/10/2020 at 04:57AM