Executes a command over and over until the command returns a non-zero exit code. Useful for running tests that should be, but aren't, deterministic.

rerun-until-fail

#!/bin/bash

COMMAND=$1
i=0
echo "Executing: $COMMAND"

while true; do
    i=$[$i+1]
    echo "Run: $i ("`date`")"
    $COMMAND 2>&1 1> run.log

    if [ $? -ne 0 ]; then
        echo "Command failed!"
        break
    fi
done

echo "Exiting."