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 @Smylers2:

Unlock 7 remaining solutions by signing in and submitting your own entry
Created by: @u_hossein

351 active golfers, 1432 entries

Solutions by @Smylers2:
26
#3 - Smylers / @Smylers2

03/18/2022 at 07:38PM

27
#>44 - Smylers / @Smylers2

03/18/2022 at 07:35PM

30
#>126 - Smylers / @Smylers2

03/18/2022 at 07:27PM

31
#>141 - Smylers / @Smylers2

03/18/2022 at 06:40PM

31
#>141 - Smylers / @Smylers2

03/18/2022 at 07:21PM

32
#>163 - Smylers / @Smylers2

03/18/2022 at 06:39PM

35
#>183 - Smylers / @Smylers2

03/18/2022 at 07:24PM