remove_old_files.sh by Seb Dangerfield

remove_old_files.sh

#!/bin/bash
# http://www.sebdangerfield.me.uk/2011/02/old_file_removal_bash-script/
# ex: ./remove_old_files.sh 30 /home/myuser/large_file_count_dir
if [ $# -ne 2 ] ; then
    echo "Not enough arguments.
Please pass the number of files to keep followed by the path"
    exit 1
fi
# First argument is the number of files to keep!
KEEP_NUM=$1
# Second argument is the directory to look under:
DIR=$2
if [ $KEEP_NUM -gt 0 ] ; then
    FILES=(`ls -t1 $DIR`)
    NUM_FILES=${#FILES[@]}
    echo Number of files found: $NUM_FILES
    # Remove all the old files from the array after the required
    # number have been kept!
    FILES_REMOVED=0
    for ((i=KEEP_NUM;i< $NUM_FILES;i++)); do
        echo Removing: $DIR/${FILES[$i]}
        `rm -f $DIR/${FILES[$i]}`
        let FILES_REMOVED++
    done
    echo $FILES_REMOVED 'File(s) removed'
else
    echo 'please specify the number of files to keep: 1 or more'
fi