How to write the simplest loop in bash?

Question

linux

I know that it's easy, but it's urgent (and in general, 0 in programming).
We need a script that will execute the script.sh script twice, even if it fails the first time.
Or a script that will be executed again if the first time there was an error.

Answer 1

can run like this will be easier: ./script || ./script?

Answer 2

Why then cycle?
Isn't it easier to write the same thing twice?
#!/bin/sh
./script.sh
./script.sh
Or with error checking
#!/bin/sh
if ./script.sh
then echo NO ERROR
else ./script.sh
fi