Retry a Bash command with timeout

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You can simplify things a bit by putting command right in the test and doing increments a bit differently. Otherwise the script looks fine:

NEXT_WAIT_TIME=0
until [ $NEXT_WAIT_TIME -eq 5 ] || command; do
    sleep $(( NEXT_WAIT_TIME++ ))
done
[ $NEXT_WAIT_TIME -lt 5 ]

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