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bash
TIMESTAMP=`tail -1 /var/log/yum.log | awk -F: '{ print $1 ":" $2 }' | sed s'/.$//'`
yum remove `grep "$TIMESTAMP" /var/log/yum.log | awk '{ print $5 }' | sed 's/\-[0-9].*$//g' | sed 's/^[0-9]://g'`