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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 @andreas_nasman:

Unlock 9 remaining solutions by signing in and submitting your own entry
Created by: @johnreitano

1512 active golfers, 6191 entries

Solutions by @andreas_nasman:
10
#357 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:46PM

10
#>362 - Andreas Näsman / @andreas_nasman

11/26/2020 at 08:11PM

11
#>676 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:36PM

13
#>823 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:31PM

13
#>823 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:33PM

14
#>880 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:29PM

15
#>963 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:26PM

16
#>1056 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:19PM

17
#>1122 - Andreas Näsman / @andreas_nasman

11/22/2020 at 09:12PM