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#!/bin/bash
usage="Usage: dir_diff.sh [days]"

if [ ! "$1" ]
then
  echo $usage
  exit 1
fi

now=$(date +%s)
hadoop fs -lsr | grep "^d" | while read f; do 
  dir_date=`echo $f | awk '{print $6}'`
  difference=$(( ( $now - $(date -d "$dir_date" +%s) ) / (24 * 60 * 60 ) ))
  if [ $difference -gt $1 ]; then
    echo $f;
  fi
done


#The following command will delete the files before certain date

#hadoop fs -ls shakespeare | tail -n+2 | xargs -n 8 |
#awk '{

#if ( ($(date)-$(date -d $6)) == 0)
#cmd="hadoop fs -rm " $8;
#system(cmd)
#}

#if ( ($(date)-$(date -d $6)) == 0)  ---change the if condition to difference which you want..
#currently it will delete todays files...