[root@v05-docker-net-test02 ~]# cd /usr/lib/tmpfiles.d/

[root@v05-docker-net-test02 tmpfiles.d]# ls

etc.conf          iptraf-ng.conf  libselinux.conf  pam.conf  python.conf   rpm.conf  selinux-policy.conf  systemd.conf          tmp.conf    var.conf

initscripts.conf  legacy.conf     lvm2.conf        ppp.conf  rpcbind.conf  sap.conf  sudo.conf            systemd-nologin.conf  tuned.conf  x11.conf

[root@v05-docker-net-test02 tmpfiles.d]# cat tmp.conf

#  This file is part of systemd.

#

#  systemd is free software; you can redistribute it and/or modify it

#  under the terms of the GNU Lesser General Public License as published by

#  the Free Software Foundation; either version 2.1 of the License, or

#  (at your option) any later version.

# See tmpfiles.d() for details

# Clear tmp directories separately, to make them easier to override

# 默认保留时间变为了10天，如果这10天内没做任何调整，会被处理

v /tmp  root root 10d

v /var/tmp  root root 30d

# Exclude namespace mountpoints created with PrivateTmp=yes

x /tmp/systemd-private-%b-*

X /tmp/systemd-private-%b-*/tmp

x /var/tmp/systemd-private-%b-*

X /var/tmp/systemd-private-%b-*/tmp

root@v01-apppre-mobile01 ~]# cd /etc/cron.daily

[root@v01-apppre-mobile01 cron.daily]# ls

logrotate  makewhatis.cron  mlocate.cron  prelink  readahead.cron  tmpwatch

[root@v01-apppre-mobile01 cron.daily]# cat logrotate

#!/bin/sh

/usr/sbin/logrotate /etc/logrotate.conf

EXITVALUE=$?

if [ $EXITVALUE !=  ]; then

    /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"

fi

exit

[root@v01-apppre-mobile01 cron.daily]# cat tmpwatch

#! /bin/sh

flags=-umc

/usr/sbin/tmpwatch "$flags" -x /tmp/.X11-unix -x /tmp/.XIM-unix \

    -x /tmp/.font-unix -x /tmp/.ICE-unix -x /tmp/.Test-unix \

    -X '/tmp/hsperfdata_*' -X '/tmp/.hdb*lock' -X '/tmp/.sapstartsrv*.log' \

    -X '/tmp/pymp-*' 10d /tmp

/usr/sbin/tmpwatch "$flags" 30d /var/tmp

for d in /var/{cache/man,catman}/{cat?,X11R6/cat?,local/cat?}; do

    if [ -d "$d" ]; then

    /usr/sbin/tmpwatch "$flags" -f 30d "$d"

    fi

done