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cleancache.sh
executable file
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cleancache.sh
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#!/bin/bash
#
# prune_dir - prune directory by deleting files if we are low on space
#
DIR=$1
CAPACITY_LIMIT=$2
if [ "$DIR" == "" ]
then
echo "ERROR: directory not specified"
exit 1
fi
if ! cd $DIR
then
echo "ERROR: unable to chdir to directory '$DIR'"
exit 2
fi
if [ "$CAPACITY_LIMIT" == "" ]
then
CAPACITY_LIMIT=80 # default limit
fi
CAPACITY=$(df -k . | awk '{gsub("%",""); capacity=$5}; END {print capacity}')
if [ $CAPACITY -gt $CAPACITY_LIMIT ]
then
#
# Get list of files, oldest first.
# Delete the oldest files until
# we are below the limit. Just
# delete regular files, ignore directories.
#
ls -rt | while read FILE
do
if [ -f $FILE ]
then
if rm -f $FILE
then
echo "Deleted $FILE"
CAPACITY=$(df -k . | awk '{gsub("%",""); capacity=$5}; END {print capacity}')
if [ $CAPACITY -le $CAPACITY_LIMIT ]
then
# we're below the limit, so stop deleting
exit
fi
fi
fi
done
fi