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 9v006233d72d000000000219

Fix the shell script!

Fix the shell script with the fewest keystrokes!

Start file
#!/bin/bash
a
= 5
b
= 10
sum
= $a + $b
echo $sum

mul
= $a * $b
echo $mul
End file
#!/bin/bash
a
=5
b
=10
sum
=$((a + b))
echo $sum

mul
=$((a * b))
echo $mul

View Diff

2,4c2,4
< a = 5
< b = 10
< sum = $a + $b
---
> a=5
> b=10
> sum=$((a + b))
7c7
< mul = $a * $b
---
> mul=$((a * b))

Solutions by @theorem:

Unlock 11 remaining solutions by signing in and submitting your own entry
Created by: @u_hossein

603 active golfers, 2596 entries

Solutions by @theorem:
26
#47 - theorem / @theorem

08/10/2023 at 12:16AM

27
#>110 - theorem / @theorem

08/10/2023 at 12:15AM

28
#>157 - theorem / @theorem

08/10/2023 at 12:14AM

29
#>214 - theorem / @theorem

08/10/2023 at 12:12AM

30
#>238 - theorem / @theorem

08/10/2023 at 12:11AM

31
#>269 - theorem / @theorem

08/10/2023 at 12:09AM

32
#>282 - theorem / @theorem

08/10/2023 at 12:07AM

35
#>336 - theorem / @theorem

08/10/2023 at 12:06AM

41
#>421 - theorem / @theorem

08/10/2023 at 12:00AM

44
#>454 - theorem / @theorem

08/09/2023 at 11:58PM

51
#>504 - theorem / @theorem

08/09/2023 at 11:54PM