2

So I know how to loop through 1 variable: 

folder="(first|second|third)"
for i in "${folder[@]}"; do
  rclone move /mounts/$folder/cache
done

But how to do it when they are 2?

folder="(first|second|third)"
mount="(something1|something2|something3)"
for i in "${folder[@]}"; do
  rclone move /mounts/$folder/cache $mount
done

So script should loop each folder with correct mount added.

At the end, execution should be like this:

 rclone move /mounts/first/cache something1
 rclone move /mounts/second/cache something2
 rclone move /mounts/third/cache something3
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2

1 Answer 1

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7

You need to iterate over the array index number and not the value. This is done using the ${!folder[@]} syntax.

In that way you can access both arrays via the same index inside the loop

e.g. (putting echo in front for this example)

folder=(first second third)
mount=(something1 something2 something3)
for i in "${!folder[@]}"; do
  echo rclone move /mounts/${folder[$i]}/cache ${mount[$i]}
done

Will output

rclone move /mounts/first/cache something1
rclone move /mounts/second/cache something2
rclone move /mounts/third/cache something3
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