#!/bin/sh

# timer to clean some big logs

# empty file if size is more than 52 Kb
MAX_SIZE=52

while [ 1 ]; do

  for file in $(find /var/log/ -type f); do
    size=$(du -a $file| awk '{print $1}')
    if [ $size -gt $MAX_SIZE ]; then
       logger "clear-logs $file have BIG size $size Kb, empty it"
       last_line=$(tail -1 $file)
       echo $last_line > $file
    fi
  done
  sleep 60
done