function run(){
    if [ "$1" = "root" ]
    then
        prefix="bash -c "
    else
        prefix="su $USERNAME -c "
    fi
    echo "[    ] $1: $2"
    echo "# $2" >>"$LOG_FILE"
    echo "$1> $3" >>"$LOG_FILE"
    $prefix "$3" &>>"$LOG_FILE" \
        && echo -e "[ \e[32mOK\e[0m ] $1: $2" \
        || { 
            echo -e "[\e[31mFAIL\e[0m] $1: $2"
            bash -c "$4"
            exit
        }
    echo >>"$LOG_FILE"
}