Shell Programming and Scripting

script.sh 2016 04 01 2016 04 05

byear=$1
bmonth=${2}
bday=${3}
eyear=${4}
emonth=${5}
eday=${6}


bjulian=`date -d "$1/$2/$3" +%j`
ejulian=`date -d "$4/$5/$6" +%j`
firstcolumn=`expr ${bday} + 1`
lastcolumn=`expr ${eday} + 1`

x=`expr ${bjulian} - 1`
until [ $x -eq "$ejulian" ] ; do
for i in `seq $firstcolumn $lastcolumn`; do
extract=$(awk '{print ('$i')}'  input.file)
#extract=$(awk -v myvar="$i" 'BEGIN{print myvar}'  input.file)
((x++))
echo "$x" "$extract"
done
done
exit

blah   13     25      0    18      0     0    178 ..........

92 2
93 3
94 4
95 5
96 6

92 13
93 25
94 0
95 18
96 0

 extract=$(awk '{print $fld}' fld=$i input.file)

extract=$(awk '{print ($'$i')}'  input.file)

extract=$(awk -v myvar=$i '{print ($myvar)}'  input.file)

$ awk -v COL=3 '{ print $COL }' <<EOF
A B C D E
EOF

C

$

...
read -a arr < input.file
for i in seq `$firstcolumn $lastcolumn`; do
extract=${arr[i-1]}
((x++))
echo "$x" "$extract"
done
...

...
read -a arr < input.file
x=$bjulian
until [ $x -gt $ejulian ]; do
  i=$firstcolumn
  until [ $i -gt $lastcolumn ]; do
    extract=${arr[i-1]}
    echo "$x" "$extract"
    ((x++))
    ((i++))
  done
done
...