Real Vim ninjas count every keystroke - do you?

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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 @jamesbtan:

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

604 active golfers, 2597 entries

Solutions by @jamesbtan:
27
#122 - James Tan / @jamesbtan

05/07/2024 at 12:33PM

28
#>175 - James Tan / @jamesbtan

05/07/2024 at 12:29PM

29
#>221 - James Tan / @jamesbtan

05/07/2024 at 12:26PM

30
#>243 - James Tan / @jamesbtan

05/07/2024 at 12:25PM

31
#>273 - James Tan / @jamesbtan

05/07/2024 at 12:22PM

35
#>343 - James Tan / @jamesbtan

05/07/2024 at 12:20PM

46
#>473 - James Tan / @jamesbtan

05/07/2024 at 12:19PM

48
#>491 - James Tan / @jamesbtan

05/07/2024 at 12:17PM

54
#>521 - James Tan / @jamesbtan

05/07/2024 at 12:15PM