Convert email address into html codes @

hideemail.sh

#!/bin/bash

if [ $# -ne 1 ]
 then
  echo
  echo "usage: $0 <email@address>"
  echo
  echo
  exit 1
 fi

echo -n "mailto:"
COUNT=1
CHAR=`echo $1|cut -c 1`
while [ "$CHAR" != "" ]
 do
  DEC=`echo $CHAR|perl -e 'print ord <STDIN>'`
  echo -n "&#${DEC};"
  COUNT=$[COUNT+1]
  CHAR=`echo $1|cut -c $COUNT`
 done
echo

I don't know if this is the approach I would take if I were doing this now, but it seemed like a good idea in 2004. I tested it and it still works. I don't know if they have code to prevent accidentally putting email addresses in comments, but let's see what happens.

$ hideemail.sh

usage: ./hideemail <email@address>

$ hideemail.sh ceo@example.com
mailto:ceo@example.com

It just converts all of the text to HTML Codes and puts a mailto: in the front. I don't know if email address scapers decode these now or not, but it used to work really well to keep the spam down and still have a working email link.