hashscript

#!/bin/bash
# Usage: ./hashscript <input> <output>
# Open terminal in Mac, type "nano hashscript", paste this in and save. Type "chmod +x hashscript" and make sure your data files are in the same directory
# Data format, rows of: example@domain.com,a,b,c,d,e where the first field is what you want to hash
for i in `cat $1`; do
        IDENTIFIERFIELD="`echo $i | cut -d, -f 1 | tr -d ' ' | tr '[A-Z]' '[a-z]'`"
        RESTOFINFO="`echo $i | cut -d, -f2-`"
        IDENTIFIERFIELDHASH="`echo $IDENTIFIERFIELD | md5`"
        echo $IDENTIFIERFIELDHASH,$RESTOFINFO >> $2
done