how to add up a total in a summary report?

Hi all i got a script up but i cant add up the summary report.. keep having synax error . mind helping me to take a look and tell me what went wrong..

i know is a bit long but i hope someone can hep me with it. thanks

the error message come up when i try to run the sumary report..

i guess 1 of the problem is the system date.thing.

the problem is about point of sales.

i am trying to the add up all the daily sales and then have a grand total of all the sales of all days.
below is the code.

# Global variables
POS=~/.Point_Of_Sales
POS=POS.txt
export POS

confirm()
{
  echo -en "$@"
  read ans
  ans=`echo $ans | tr '[a-z]' '[A-Z]'`
  if [ "$ans" == "Y" ]; then
    return 0
  else
    return 1
  fi
}

num_lines()
{
  grep -i "$@" $POS|wc -l| awk '{ print $1 }'
}

find_lines()
{
  # Find lines matching $1
  res=-1
  if [ ! -z "$1" ]; then
    grep -i "$@" $POS
    res=$?
  fi
  return $res
}

list_items()
{
  # List items matching given search criteria
  if [ "$#" -eq "0" ]; then
    echo -en "Search for: (return to list all) "
    read search
    if [ -z "$search" ]; then
      search="."
    fi
    echo
  else
    search="$@"
  fi
  find_lines "${search}" | while read i
  do
    echo "$i" | tr ':' '\t'
  done
  echo -en "Matches found: "
  num_lines "$search"
}

add_item()
{
  echo "Add Item: You will be prompted for 3 items:"
  echo "- Item Description, Unit Price, Quantity Purchased -"
  echo
  echo -en "Item Description:"
  read product
  echo -en "Unit Price:"
  read Unit_Price
  echo -en "Quantity:"
  read Quantity
  Date_Purchased=$(date +"%d %b %Y")  
  

  echo "${product}:${Unit_Price}:${Quantity}:${Date_Purchased}" >> $POS
}

locate_single_item()
{
  echo -en "Item to search for: "
  read search
  n=`num_lines "$search"`
  if [ -z "$n" ]; then
    n=0
  fi
  while [ "${n}" -ne "1" ]; do
    #list_items "$search"
    echo -en "${n} matches found. Please choose a "
    case "$n" in 
      "0") echo "less" ;;
      "*") echo "more" ;;
    esac
    echo "specific search term (q to return to menu): "
    read search
    if [ "$search" == "q" ]; then
      return 0
    fi
    n=`num_lines "$search"`
  done
  return `grep -in $search $POS |cut -d":" -f1`
}

remove_item()
{
  locate_single_item
  search=`head -$? $POS | tail -1|tr ' ' '.'`
  if [ -z "${search}" ]; then
    return
  fi
  list_items "$search"
  confirm "Remove?"
  if [ "$?" -eq "0" ]; then
    grep -v "$search" $POS > ${POS}.tmp ; mv ${POS}.tmp ${POS}
  else
    echo "NOT REMOVING"
  fi
}

edit_item()
{
  locate_single_item
  search=`head -$? $POS | tail -1|tr ' ' '.'`
  if [ -z "${search}" ]; then
    return
  fi
  list_items "$search"
  thisline=`grep -i "$search" $POS`
  oldProduct=`echo $thisline|cut -d":" -f1`
  oldUnitPrice=`echo $thisline|cut -d":" -f2`
  oldQuanity=`echo $thisline|cut -d":" -f3`
  echo "SEARCH : $search"
  grep -v "$search" $POS > ${POS}.tmp ; mv ${POS}.tmp ${POS}
  echo -en "Item Description: [ $oldProduct ] "
  read Product
  echo -en "Unit Price[ $oldUnitPrice ] "
  read Unit_Price
  echo -en "Quanity [ $oldQuanity ] "
  read Quanity
  Date_Purchased=$(date +"%d %b %Y")  
  echo "${Product}:${Unit_Price}:${Quanity}:${Date_Purchased}" >> $POS
}
summary_items()
{
  #echo "- - - POS Summary Report - - -"
  #echo "---------------------------"
  #echo "Date       Total POS"
  #echo "---------------------------"
  print_dtotal
  #echo "---------------------------"
  #print_gtotal
  #echo "---------------------------"
  #echo -en "Best Selling Product: "
  #print_bestsell
  #echo -en "Product with Highest POS: "
  #print_phighPOS
  #echo -en "Date with Highest POS: "
  print_dtotal | sort -f4| while read z
    do
        echo $z | cut -f4 -d' '
        return 0
    done
  echo
  echo -en "Press Enter to continue..."
  read
}
print_dtotal()
{
  count=0
  grep -i : $POS | cut -d: -f4 | sort -u | while read i
    do
        dtotal=0
    grep -i "$i" $POS | while read x
        do
            count=`expr $count + 1`
            temp1=`echo $x | cut -d: -f2 | cut -c2-`
            temp2=`echo $x | cut -d: -f3`
            temp3=`calcu_m $temp1 $temp2`
                        dtotal=`calcu_a $dtotal $temp3`
            n=`num_lines "$i"`
               if [ "${n}" -eq "${count}" ]; then
                echo  $i"        $"$dtotal
              fi
        done
    done 

}
print_gtotal()
{
  gtotal=0
  grep -i : $POS | while read x
    do
        temp1=`echo $x | cut -d: -f2 | cut -c2-`
        temp2=`echo $x | cut -d: -f3`
        temp3=`calcu_m $temp1 $temp2`
                gtotal=`calcu_a $gtotal $temp3`
        n=`num_lines "$i"`
           if [ "${n}" -eq "${count}" ]; then
            echo  "Grand Total      $"$gtotal
          fi
        count=`expr $count + 1`
    done 

}
print_bestsell()
{
   grep -i : $POS | sort -k4 -r -t: | while read bs
    do
           echo $bs | cut -d: -f1
        return 0
    done
}
print_phighPOS()
{
      count=0
        phigh="0.0"
    grep -i : $POS | while read x
        do
            count=`expr $count + 1`
            temp1=`echo $x | cut -d: -f2 | cut -c2-`
            temp2=`echo $x | cut -d: -f3`
            temp3=`calcu_m $temp1 $temp2`
            comparex $temp3 $phigh
               if [ "$?" -eq "0" ]; then
                phigh=$temp3
                phighx=`echo $x | cut -d: -f1`
              fi
            n=`num_lines ":"`
               if [ "${n}" -eq "${count}" ]; then
                echo  $phighx
              fi
        done
}
comparex()        # compare 2 decimal numbers $1 $2 eg 1.20 and 3.60
{
    x1=`echo $1 | cut -d. -f1`
    x2=`echo $1 | cut -d. -f2`
    y1=`echo $2 | cut -d. -f1`
    y2=`echo $2 | cut -d. -f2`
    if [ "${x1}" -gt "${y1}" ]; then
        return 0
    elif [ "${x1}" -eq "${y1}" ]; then
        if [ "${x2}" -gt "${y2}" ]; then
            return 0
        fi
    fi
    return 1
}
calcu_a()        # add 2 decimal numbers $1 $2
{
    x1=`echo $1 | cut -d. -f1`
    x2=`echo $1 | cut -d. -f2`
    y1=`echo $2 | cut -d. -f1`
    y2=`echo $2 | cut -d. -f2`
    x1=`expr $x1 + $y1`
    x2=`expr $x2 + $y2`
    x3=`expr $x2 \/ 100`
    x1=`expr $x1 + $x3`
    x2=`expr $x2 \% 100`
    echo $x1"."$x2
}
calcu_m()        # multiply 2 decimal numbers $1 $2
{
    x1=`echo $1 | cut -d. -f1`
    x2=`echo $1 | cut -d. -f2`
    y=`echo $2`
    x1=`expr $x1 \* $y`
    x2=`expr $x2 \* $y`
    x3=`expr $x2 \/ 100`
    x1=`expr $x1 + $x3`
    x2=`expr $x2 \% 100`
    echo $x1"."$x2
}

What happens when you move function print_dtotal() above summary_items()?

Hi all , below i am suppose to key in and enter the daily sales in to the system.

and i am suppose to get the daily total sales and the grand total sales when i ask for summary listing
below is the code that i have write.. can any one help?

the function doesnt seems to bea ble to reconise the system day and promt me a syntaxerror..

#Enter and add in the Item detail, Item Price and Quantity Purchased into the system.
add_item()
{
  echo "Add Item: You will be prompted for 3 items:"
  echo "- Item Description, Unit Price, Quantity Purchased -"
  echo
  echo -en "Item Description:"
  read product
  echo -en "Unit Price:"
  read Unit_Price
  echo -en "Quantity:"
  read Quantity
  Date_Purchased=$(date +"%d %b %Y")  
  
  echo "${product}:${Unit_Price}:${Quantity}:${Date_Purchased}" >> $POS
}
#i am printing out all the daily sales in a day   print_dtotal
#i am printing out all the grand total sales of all days  print_gtotal
summary_items()
{
  
  print_dtotal
 
  print_gtotal
  
  print_dtotal | sort -f4| while read z
    do
        echo $z | cut -f4 -d' '
        return 0
    done
  echo
  echo -en "Press Enter to continue..."
  read
}
print_dtotal()
{
  count=0
  grep -i : $POS | cut -d: -f4 | sort -u | while read i
    do
        dtotal=0
    grep -i "$i" $POS | while read x
        do
            count=`expr $count + 1`
            temp1=`echo $x | cut -d: -f2 | cut -c2-`
            temp2=`echo $x | cut -d: -f3`
            temp3=`calcu_m $temp1 $temp2`
                        dtotal=`calcu_a $dtotal $temp3`
            n=`num_lines "$i"`
               if [ "${n}" -eq "${count}" ]; then
                echo  $i"        $"$dtotal
              fi
        done
    done 
}
print_gtotal()
{
  gtotal=0
  grep -i : $POS | while read x
    do
        temp1=`echo $x | cut -d: -f2 | cut -c2-`
        temp2=`echo $x | cut -d: -f3`
        temp3=`calcu_m $temp1 $temp2`
                gtotal=`calcu_a $gtotal $temp3`
        n=`num_lines "$i"`
           if [ "${n}" -eq "${count}" ]; then
            echo  "Grand Total      $"$gtotal
          fi
        count=`expr $count + 1`
    done 
}
calcu_a()        # add 2 decimal numbers $1 $2
{
    x1=`echo $1 | cut -d. -f1`
    x2=`echo $1 | cut -d. -f2`
    y1=`echo $2 | cut -d. -f1`
    y2=`echo $2 | cut -d. -f2`
    x1=`expr $x1 + $y1`
    x2=`expr $x2 + $y2`
    x3=`expr $x2 \/ 100`
    x1=`expr $x1 + $x3`
    x2=`expr $x2 \% 100`
    echo $x1"."$x2
}
calcu_m()        # multiply 2 decimal numbers $1 $2
{
    x1=`echo $1 | cut -d. -f1`
    x2=`echo $1 | cut -d. -f2`
    y=`echo $2`
    x1=`expr $x1 \* $y`
    x2=`expr $x2 \* $y`
    x3=`expr $x2 \/ 100`
    x1=`expr $x1 + $x3`
    x2=`expr $x2 \% 100`
    echo $x1"."$x2
}

So all other functions run fine except the summary_items() function? I'm not clear on what error it is you're seeing.

What error do you get?

Is it: sort: invalid option -- 4

You are assigning two different values to POS; only the last assignment endures; the first might as well never have been made.

Avoid options to echo; they are non-standard as is ==.

You do not need to call tr; you can check the answer without it:

confirm()
{
  printf "%s " "$*"
  read ans
  case "$ans" in
    [Yy]) true ;;
    *) false ;;
  esac
}

That will fail if there is more than one argument.

There's no need for awk or wc:

  grep -ni "$1" "$POS"
find_lines()
{
  # Find lines matching $1
  if [ -n "$1" ]; then
    grep -i "$1" "$POS"
  fi
}

There's no need for cut:

return `grep -hin $search $POS`
sort: invalid option -- 4

ya all the other function is working fine except the summary part.. any one can help me with it?

No, not if you don't answer the questions you have been asked.

ya that part of the error message i get

Then read the error message (it tells you what the problem is) and fix the cause of it.

ya that what i have been doing for the past few nights and i cant seems to solve the problem..

The only question I have is where count is set in print_gtotal() for you to increment. There's a lot going on so it's a bit hard to follow.

print_gtotal()
{
  gtotal=0
  grep -i : $POS | while read x
    do
        temp1=`echo $x | cut -d: -f2 | cut -c2-`
        temp2=`echo $x | cut -d: -f3`
        temp3=`calcu_m $temp1 $temp2`
                gtotal=`calcu_a $gtotal $temp3`
        n=`num_lines "$i"`
           if [ "${n}" -eq "${count}" ]; then
            echo  "Grand Total      $"$gtotal
          fi
        count=`expr $count + 1`
    done 

}

The offending line is:

print_dtotal | sort -f4| while read z

The error message is:

sort: invalid option -- 4

HINT: Remove the invalid option

hmm so i shld take out the count?

but b4 i can print the grand total, i need to print out the daily sales. and my daily sales cant be printed out also

okie i shld try that tonite

what does sort -f4 do? what ae you trying to do here?

check man pages for sort.

cheers,
Devaraj Takhellambam

trying to sort the field 4 which is date purchased

but thats not the way you should sort..perhapes u r confused with f for field...

in POSIX form, use k to sort on the key/field

I am not sure how ur sort input looks like, but sort uses one or more spaces as the default field seperator.

so use

sort -k 4

or if u need to specify a field delimeter

use this

sort -t "filedsperator" -k 4

cheers,
Devaraj Takhellambam