#! /bin/ksh
# ** saveaday.scr **   Just to make a yyddd subdir and copy dated gif files there.
#                                                       (26sep2001 gsw)
#
#           27sep2001 -gsw- actually no need at the moment for using yda.
#  Update:  26sep2001 -gsw- make automatic (either yda(default) or entered day).

#-----
# Set the path.  (setPATH/setMCPATH.scr by JPN)
#-----
####export PATH=`setPATH.scr`

#-----
# Set up MCPATH.
#-----
####export MCPATH=`setMCPATH.scr`
 
command=$0

#-----
# Display script name as well as time and date at the beginning of the script.
#-----
echo
echo "**********************************************************************"
echo
echo "  ** $command began at ..."
echo
echo "    ** `date -u +\"%T UT on  %a  %d %b %Y {%j}\"` **"
echo

# -- If date is entered, use it (yyddd); otherwise, determine yesterday to use
#    as the default.  (Transfers are only to be done after all of a day's
#    processing would be complete.)

if [ -z "$1" ]

  then
    let ccyyddd=`date -u +%Y%j`

    # Determine date for yesterday (with assumed default of today).  Only tricks are: 
    #  31 Dec from 1 Jan and back to a leap year-or-not (after a 4-divisible yr).
    if [ ccyyddd%1000 -eq 1 ]
      then
        if [ ccyyddd%4 -eq 1 ]
          then let lastday=366
          else let lastday=365
        fi
        let lastyr=ccyyddd/1000-1
        let lastyrx3=lastyr*1000
        let ccyyyda=lastyrx3+lastday
      else
        let ccyyyda=ccyyddd-1
    fi

    # Make sure yyddd variable, for yesterday, is at least 5 digits wide...
    #
    let yyyda=ccyyyda%100000
    # -- ...switching date name back to just the one yyddd...
    cmd="yyddd=\`/home/www/bin/fullnumber.scr $yyyda 5\`"  ;  eval $cmd
    echo "($command) Note: using default date (ie, yesterday) of $yyddd"

 ##### no need for yda computation at the moment; skip its output for now
    let yyddd=ccyyddd%100000
    cmd="yyddd=\`/home/www/bin/fullnumber.scr $yyddd 5\`"  ;  eval $cmd
    echo "($command) Note: using default date (ie, still today) of $yyddd"
 #####
   
  else

    yyddd=$1
    echo "($command) Note: using entered date of $yyddd"

fi

echo
cd /home2/www/goes/realtime/g12/arc
mkdir $yyddd

# -- copy files from realtime dir to new subdir.
cd $yyddd
cp ../../*$yyddd*.gif .

pwd > readme
ls -l >> readme
echo "  `date -u +\"%T UT on  %a  %d %b %Y {%j}\"`" >> readme

echo "list out what has been copied... "
echo
cat readme

echo
echo "**********************************************************************"
echo
echo "  ** $command ended at ..."
echo
echo "    ** `date -u +\"%T UT on  %a  %d %b %Y {%j}\"` **"
echo

exit 0