bash script retry command every some seconds

retry_cmd.sh

#!/usr/bin/env bash

if [ $# -ne 3 ]; then
    echo 'usage: retry <num tries> <wait retry secs> \"<command>\"'
    exit 1
fi

tries=$1
wait_retry=$2
command=$3

for i in `seq 1 $tries`; do
    $command
    ret_value=$?
    [ $ret_value -eq 0 ] && break
    echo \"> failed with $ret_value, waiting to retry...\"
    sleep $wait_retry
done

exit $ret_value"