Rename logs from logrotate style foo.1.gz to date style foo.2011-03-25.gz

log-rename.sh

#!/bin/bash

ls -l --time-style="+%Y-%m-%d" *.?.gz | awk '{ print $7,$6 }' | \
while read line; do
  set -- $line
  original=$1
  datestamp=$2
  filebase=`echo $original | rev | cut -f3- -d. | rev`
  /bin/mv -vu $original $filebase.$datestamp.gz
done