runEvery.sh

#!/bin/bash

inputPeriod=$1
runCommand=$2
RUN_TIME=60
RUN_TIME_LEFT=1
error="no"
SECONDS=0

if [ 'x'"$runCommand" != 'x' ]
then
    if [ 'x'$inputPeriod != 'x' ]
    then
        loops=$(( $RUN_TIME / $inputPeriod ))
        if [ $loops -eq 0 ]
        then
            loops=1
        fi

        for i in $(eval echo {1..$loops})
        do
            $runCommand
            sleep $inputPeriod
            RUN_TIME_LEFT=$((RUN_TIME-SECONDS))
            if [ $RUN_TIME_LEFT -le 0 ]
            then
                break
            fi
        done

    else
        error="yes"
    fi
else
    error="yes"
fi

if [ $error = "yes" ]
then
    echo "runEvery - runs a command every X seconds for a minute"
    echo "Usage: runEvery.sh <# in seconds < 60> <command to run>"
fi