automatic print pdf

crontab

*/1 * * * *    root      find /printer -iname "*.pdf" -exec printpdf "{}" \; > /dev/null

printpdf

#!/bin/bash

DATE=`date`
PRINTER=Brother_DCP-9055CDN

# check if file already printed and try to remove this file
if [ -f "/tmp/printed.tmp" ]; then
   while read p; do
      if [ "$p" = "$1" ]; then
          rm -f "$1"
          echo "'$1' already printed"
          exit
      fi
   done </tmp/printed.tmp
fi

echo "$DATE print file $1" >> /var/log/printpdf.log
lp -d $PRINTER "$1" >> /var/log/printpdf.log
echo "$DATE remove $1" >> /var/log/printpdf.log
echo $1 >> /tmp/printed.tmp
rm -f "$1"