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 @ilPp5j1wfhKSFHr:

Unlock 16 remaining solutions by signing in and submitting your own entry
Created by: @u_hossein

606 active golfers, 2605 entries

Solutions by @ilPp5j1wfhKSFHr:
27
#66 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 03:11AM

28
#>128 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 03:11AM

31
#>253 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:46AM

31
#>253 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:58AM

32
#>278 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:45AM

35
#>318 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:45AM

36
#>350 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:44AM

38
#>380 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:44AM

41
#>416 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:43AM

46
#>468 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:42AM

48
#>485 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:41AM

53
#>514 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:40AM

54
#>518 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:40AM

61
#>539 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:39AM

63
#>545 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:38AM

71
#>562 - 황시준_2771 / @ilPp5j1wfhKSFHr

04/04/2022 at 02:35AM