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 @SYS_0704:

Unlock 6 remaining solutions by signing in and submitting your own entry
Created by: @u_hossein

281 active golfers, 1082 entries

Solutions by @SYS_0704:
27
#40 - ys / @SYS_0704

04/11/2022 at 12:15PM

28
#>66 - ys / @SYS_0704

04/11/2022 at 12:07PM

29
#>84 - ys / @SYS_0704

04/11/2022 at 12:05PM

30
#>101 - ys / @SYS_0704

04/11/2022 at 12:04PM

31
#>118 - ys / @SYS_0704

04/11/2022 at 11:55AM

65
#>254 - ys / @SYS_0704

04/11/2022 at 11:52AM