*The main function used when ``cl_utils.py`` is run as a single script from the cl, or when installed as a cl command*

def main(arguments=None):
    """
    *The main function used when ``cl_utils.py`` is run as a single script from the cl, or when installed as a cl command*
    """
    # setup the command-line util settings

    dev_flag = False

    su = tools(
        arguments=arguments,
        docString=__doc__,
        logLevel="DEBUG",
        options_first=False,
        projectName="rockAtlas"
    )
    arguments, settings, log, dbConn = su.setup()

    # unpack remaining cl arguments using `exec` to setup the variable names
    # automatically
    for arg, val in arguments.iteritems():
        if arg[0] == "-":
            varname = arg.replace("-", "") + "Flag"
        else:
            varname = arg.replace("<", "").replace(">", "")
        if varname == "import":
            varname = "iimport"
        if isinstance(val, str) or isinstance(val, unicode):
            exec(varname + " = '%s'" % (val,))
        else:
            exec(varname + " = %s" % (val,))
        if arg == "--dbConn":
            dbConn = val
        log.debug('%s = %s' % (varname, val,))

    ## START LOGGING ##
    startTime = times.get_now_sql_datetime()
    log.info(
        '--- STARTING TO RUN THE cl_utils.py AT %s' %
        (startTime,))

    if init:
        from os.path import expanduser
        home = expanduser("~")
        filepath = home + "/.config/rockAtlas/rockAtlas.yaml"
        try:
            cmd = """open %(filepath)s""" % locals()
            p = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True)
        except:
            pass
        try:
            cmd = """start %(filepath)s""" % locals()
            p = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True)
        except:
            pass

    # CALL FUNCTIONS/OBJECTS
    if bookkeeping:
        from rockAtlas.bookkeeping import bookkeeper
        bk = bookkeeper(
            log=log,
            settings=settings,
            fullUpdate=fullFlag
        )
        bk.clean_all()

    if astorb:
        from rockAtlas.orbital_elements import astorb
        oe = astorb(
            log=log,
            settings=settings
        )
        oe.refresh()

    if pyephem:

        from rockAtlas.positions import pyephemPositions
        pyeph = pyephemPositions(
            log=log,
            settings=settings,
            dev_flag=dev_flag
        )
        pyeph.get(singleSnapshot=oneFlag)

    if orbfit:
        from rockAtlas.positions import orbfitPositions
        oe = orbfitPositions(
            log=log,
            settings=settings,
            dev_flag=dev_flag
        )
        oe.get(singleExposure=oneFlag)

    if cache:
        from rockAtlas.phot import download
        data = download(
            log=log,
            settings=settings,
            dev_flag=dev_flag
        )
        data.get(days=days)

    if dophot:
        from rockAtlas.phot import dophotMatch
        dp = dophotMatch(
            log=log,
            settings=settings
        )
        dp.get()

    if cycle:
        from rockAtlas.phot import download
        from rockAtlas.positions import pyephemPositions
        from rockAtlas.positions import orbfitPositions
        from rockAtlas.phot import dophotMatch
        from fundamentals.mysql import readquery

        # INITIAL ACTIONS
        # SETUP ALL DATABASE CONNECTIONS
        from rockAtlas import database
        db = database(
            log=log,
            settings=settings
        )
        dbConns, dbVersions = db.connect()
        atlas3DbConn = dbConns["atlas3"]
        atlas4DbConn = dbConns["atlas4"]
        atlasMoversDBConn = dbConns["atlasMovers"]

        while True:

            if dev_flag:
                o = " and dev_flag = 1"
            else:
                o = " "

            sqlQuery = u"""
                select distinct floor(mjd) from (
select mjd from atlas_exposures where dophot_match = 0 %(o)s
union all
select mjd from day_tracker where processed = 0 %(o)s) as a;
            """ % locals()
            rows = readquery(
                log=log,
                sqlQuery=sqlQuery,
                dbConn=atlasMoversDBConn,
                quiet=False
            )

            if len(rows) == 0:
                if dev_flag:
                    print "Processing of the ATLAS development dataset is now complete and up to date"
                else:
                    print "Processing of ATLAS data is now complete and up to date"
                break

            start_time = time.time()

            data = download(
                log=log,
                settings=settings,
                dev_flag=dev_flag
            )
            data.get(days=days)

            print "%d seconds to download ATLAS cache of %s days\n" % (time.time() - start_time, days)
            start_time = time.time()

            pyeph = pyephemPositions(
                log=log,
                settings=settings,
                dev_flag=dev_flag
            )
            pyeph.get()

            print "%d seconds to generate pyephem snapshots\n" % (time.time() - start_time,)
            start_time = time.time()

            oe = orbfitPositions(
                log=log,
                settings=settings,
                dev_flag=dev_flag
            )
            oe.get()

            print "%d seconds to generate orbfit positions\n" % (time.time() - start_time,)
            start_time = time.time()

            dp = dophotMatch(
                log=log,
                settings=settings
            )
            dp.get()

            print "%d seconds to extract dophot measurements\n" % (time.time() - start_time,)
            start_time = time.time()

    if "dbConn" in locals() and dbConn:
        dbConn.commit()
        dbConn.close()
    ## FINISH LOGGING ##
    endTime = times.get_now_sql_datetime()
    runningTime = times.calculate_time_difference(startTime, endTime)
    log.info('-- FINISHED ATTEMPT TO RUN THE cl_utils.py AT %s (RUNTIME: %s) --' %
             (endTime, runningTime, ))

    return