How long files stay in temporary folder?
Usually 3 days if a file hasn't been accessed. It depends on OS.
You can see the implementation by running
cat /etc/periodic/daily/110.clean-tmps
#!/bin/sh
#
# $FreeBSD: src/etc/periodic/daily/110.clean-tmps,v 1.13 2004/02/28 04:58:40 ache Exp $
#
# Perform temporary directory cleaning so that long-lived systems
# don't end up with excessively old files there.
#
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
case "$daily_clean_tmps_enable" in
[Yy][Ee][Ss])
if [ -z "$daily_clean_tmps_days" ]
then
echo '$daily_clean_tmps_enable is set but' \
'$daily_clean_tmps_days is not'
rc=2
else
echo ""
echo "Removing old temporary files:"
set -f noglob
args="-atime +$daily_clean_tmps_days -mtime +$daily_clean_tmps_days"
args="${args} -ctime +$daily_clean_tmps_days"
dargs="-empty -mtime +$daily_clean_tmps_days"
dargs="${dargs} ! -name .vfs_rsrc_streams_*"
[ -n "$daily_clean_tmps_ignore" ] && {
args="$args "`echo " ${daily_clean_tmps_ignore% }" |
sed 's/[ ][ ]*/ ! -name /g'`
dargs="$dargs "`echo " ${daily_clean_tmps_ignore% }" |
sed 's/[ ][ ]*/ ! -name /g'`
}
case "$daily_clean_tmps_verbose" in
[Yy][Ee][Ss])
print=-print;;
*)
print=;;
esac
rc=$(for dir in $daily_clean_tmps_dirs
do
[ ."${dir#/}" != ."$dir" -a -d $dir ] && cd $dir && {
find -dx . -fstype local -type f $args -delete $print
find -dx . -fstype local ! -name . -type d $dargs -delete $print
} | sed "s,^\\., $dir,"
done | tee /dev/stderr | wc -l)
[ -z "$print" ] && rc=0
[ $rc -gt 1 ] && rc=1
set -f glob
fi;;
*) rc=0;;
esac
exit $rc
You can alter the default value of 3 by updating daily_clean_tmps_days in /etc/defaults/periodic.conf. (Caution: Proceed at your own risk)