#!/bin/sh function is_number(){ [[ `expr "$1" + 0 2>&1 | grep non | wc -l` -eq 0 ]] } echo echo GED\'s scan capture \(c\) 2004 echo ironstorm@users.sf.net echo echo TODO handle books echo while true; do echo echo Ready\! Scan your product echo \(hit Ctrl-C to quit\) echo upc= desc= size= manufacturer= ptype= read upc is_number "$upc" if [ "$?" = "0" ]; then echo if [ "`cat scan-data.txt | grep "$upc" | wc -l`" = "0" ]; then echo UPC \= $upc read -p "Enter manufacturer: " manufacturer while is_number "$manufacturer"; do echo Stop scanning\! read -p "Enter manufacturer: " manufacturer done read -p "Enter product description: " desc read -p "Enter size/qty/weight/type: " ptype echo \ >> scan-data.txt echo \$upc\<\/upc\> >> scan-data.txt echo \$manufacturer\<\/manufacturer\> >> scan-data.txt echo \$desc\<\/description\> >> scan-data.txt echo \$ptype\<\/type\> >> scan-data.txt echo \<\/product\> >> scan-data.txt else echo Duplicate UPC \( $upc \)! echo fi else echo echo Invalid UPC $upc echo Re-scan fi done