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Whois monitor (single domain)

/ Published in: Bash
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Simple whois monitor for running via crontab and monitoring changes of single (per cron task) domain changes. Compare sizes to exclude unimportant updates

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  1. #!/bin/sh
  2. # Copyright (c) 2006 Mihail Fedorov, http://mihailfedorov.ru
  3. # $ ./whois.sh domain.tld whois.server.tld [email protected]
  4.  
  5. # change this
  6. WORKDIR="/home/kolo/whoistory"
  7. # thanks
  8.  
  9. NEWFILE="$WORKDIR/$1.$2"
  10. OLDFILE="$WORKDIR/$1.$2.old"
  11.  
  12. mv $NEWFILE $OLDFILE 2> /dev/null
  13. whois -h $2 $1 > $NEWFILE 2> /dev/null
  14.  
  15. oldsize=$(ls -l "$OLDFILE" 2> /dev/null | awk '{print $5}')
  16. newsize=$(ls -l "$NEWFILE" | awk '{print $5}')
  17.  
  18. if [ "$oldsize" != "$newsize" ]; then
  19. 	cat $NEWFILE | mail -s "[Whoistory] $1 updated!" $3
  20. fi

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