I tried this script to get a count of the occurrence of a string in files.
I have multiple files in one directory I will use this on.
All the filenames begin "invALL.06" The script works, except it counts twice for every one instance of 'Invoice Total'.
If there are 5 occurences of 'Invoice Total' in a file it returns 10.
I have tried it with grep -cn and grep -cx. No better.
I have tried the string "Last Page" same results.
I tested by searching for the word "Continued" in the files. It counts them correctly. Does it have to do with grep -c on more than a one word string?
Thanks.

Script
for i in invALL.06*
do

count=`grep -c 'Invoice Total' $i`

echo $i "has " $count "Invoice Totals"

done


Outputs:
invALL.0605 has 870 Invoice Totals
invALL.0606 has 936 Invoice Totals


The file it is searching looks like below. It only has "Invoice Total" at the end of each Invoice section.

&k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H&k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H& a0h60V

Invoice
000000 06/19/09 84888-00
25070 ZZ joe 1
06/19/09 14:40
Sell to me co name LLC (MD)
123 your street DR 777 my DRIVE
SUITE z
your town, VA 24551 irvington, MD 21061

sell to me
123 your street DR 555-555-1212 Net 30 Days 07/19/09
yourtown, VA 24551 sold to you, L john 06/19/09


order for
this customer.
hold for 6/17/09 delivery
1 ED51 1 0 1 SHT 2.68 2.68
15#
2 la4 5 0 5 each 8.00 90.00
040
3 EW4 5 0 5 sht 7.35 36.75
4MM
=============
Subtotal for Non-Taxable: 89.43

3 Lines Total Qty Shipped Total 11 Total 89.43
Fuel Surchrg 3.50
Invoice Total 92.93








Last Page
&k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H&k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H& k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H&k2G&f504y4X(8U(s0p12.00h0s1b4102T&l6D&k10H&a0 h60V

Invoice
000000 06/19/09 848700-01
25070 ZZ Ron 1
06/19/09 14:40
selltome isell, LLC (MD)
123 sellme 123 wesell DRIVE
SUITE z
pinetree, VA 24000 pinetree, az 12121

sellto me
123 myroad 222-555-1212 Net 30 Days 07/19/09
tree, VA 24000 soldfromme, jjones 06/19/09


for
this customer.
5 YMA 2 0 2 each 3.65 7.30
A24
=============
Subtotal for Non-Taxable: 7.30

1 Lines Total Qty Shipped Total 2 Total 7.30
Invoice Total 7.30











Last Page

for i in invALL.06* 
do 
   grep -c '^Invoice Total' $i  | read count
   echo "$i  has  $count Invoice Totals" 
done

This looks like a formatted print file complete with printer control codes.
We may need to convert the control characters to text before running a textual search. Also, we usually process an open ended list of files in "while" loop which also stops the script breaking if filenames contain space characters.
Try

ls -1d invALL.06* | while read FILENAME
do
       # sed -n l (character ell) converts control characters to text 
       count=`sed -n l "${FILENAME}" | grep -c 'Invoice Total'` 
       echo "${FILENAME} has ${count} Invoice Totals" 
done