On Sat, Jul 26, 2025 at 11:22:47AM +0200, Dan wrote: > y=0 > arg[$y]="hello" > y=$y+1 > arg[$y]="dan"
This piece of code doesn't do what you probably think it does. Although it works here, y is a string variable and not a numeric variable. If you add some extra echo statements you can see: > y=0 > arg[$y]="hello" > y=$y+1 echo $y > arg[$y]="dan" The content of $y is the string '0+1'. The following assignment to arg[] correctly evaluates the 0+1, so it works _in this case_, but you should probably be using _let_ : let y=0 instead of y=0 and elsewhere where you want to ensure that y is a numeric variable.
