| 1 |
#!/bin/bash
|
| 2 |
#-------------------------------------------------------------------------------------------------
|
| 3 |
#$Header$
|
| 4 |
#-------------------------------------------------------------------------------------------------
|
| 5 |
#This file is part of "Server Scripts, Automatic Maintenance, Cron", a set of scripts for
|
| 6 |
#performing automatic periodic maintenance on a Linux server.
|
| 7 |
#-------------------------------------------------------------------------------------------------
|
| 8 |
#This source code and any program in which it is compiled/used is provided under the MIT License,
|
| 9 |
#reproduced below.
|
| 10 |
#-------------------------------------------------------------------------------------------------
|
| 11 |
#Permission is hereby granted, free of charge, to any person obtaining a copy of
|
| 12 |
#this software and associated documentation files(the "Software"), to deal in the
|
| 13 |
#Software without restriction, including without limitation the rights to use,
|
| 14 |
#copy, modify, merge, publish, distribute, sublicense, and / or sell copies of the
|
| 15 |
#Software, and to permit persons to whom the Software is furnished to do so,
|
| 16 |
#subject to the following conditions :
|
| 17 |
#
|
| 18 |
#The above copyright notice and this permission notice shall be included in all
|
| 19 |
#copies or substantial portions of the Software.
|
| 20 |
#
|
| 21 |
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| 22 |
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| 23 |
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
|
| 24 |
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| 25 |
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| 26 |
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
| 27 |
#SOFTWARE.
|
| 28 |
#-------------------------------------------------------------------------------------------------
|
| 29 |
#Master script for synthetic (custom) automatic maintenance of server.
|
| 30 |
#Runs every hour. Paradigm is that cannot run if already running,
|
| 31 |
#so must block concurrent executions.
|
| 32 |
#
|
| 33 |
#If the file with information about the battery status doesn't exist, cannot continue.
|
| 34 |
if [ -f /sys/class/power_supply/BAT1/capacity ] ; then
|
| 35 |
#
|
| 36 |
#If the file contains unfavorable information, cannot continue.
|
| 37 |
if [ `cat /sys/class/power_supply/BAT1/capacity` -gt 60 ] ; then
|
| 38 |
#
|
| 39 |
if [ ! -f /etc/cron.custom/lockfiles/auto_maint_cron_lock ] ; then
|
| 40 |
#If we're here, the lockfile does not exist, and we are clear
|
| 41 |
#to do the maintenance cron.
|
| 42 |
#
|
| 43 |
#Create the lockfile. This way, if we're invoked again
|
| 44 |
#while still running, will bail.
|
| 45 |
touch /etc/cron.custom/lockfiles/auto_maint_cron_lock
|
| 46 |
#
|
| 47 |
#Change to a safe working directory in case something goes wrong,
|
| 48 |
#especially a failed cd followed by a mass delete.
|
| 49 |
cd /root/cronjob_sandbox
|
| 50 |
#
|
| 51 |
#Gather required date information for exec'ing children. To avoid
|
| 52 |
#complexity, can use the lock file for the timestamp.
|
| 53 |
DATE_YEAR4=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%Y`
|
| 54 |
DATE_YEAR2=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%y`
|
| 55 |
DATE_MONTH_LONG=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%B`
|
| 56 |
DATE_MONTH_SHORT=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%b`
|
| 57 |
DATE_MONTH2=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%m`
|
| 58 |
DATE_DOM2=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%d`
|
| 59 |
DATE_DOW_LONG=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%A`
|
| 60 |
DATE_DOW_SHORT=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%a`
|
| 61 |
DATE_DOW_DIGIT=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%w`
|
| 62 |
DATE_HOUR_24=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%H`
|
| 63 |
DATE_HOUR_12=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%I`
|
| 64 |
DATE_AM_PM=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%p`
|
| 65 |
DATE_MIN2=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%M`
|
| 66 |
DATE_SEC2=`date --reference=/etc/cron.custom/lockfiles/auto_maint_cron_lock +%S`
|
| 67 |
#
|
| 68 |
#Run child script, sending both standard output and standard error to the temporary
|
| 69 |
#log file.
|
| 70 |
#
|
| 71 |
#The parameters passed to the child are, in order:
|
| 72 |
# 1)Year (4-digit)
|
| 73 |
# 2)Year (2-digit)
|
| 74 |
# 3)Month (long text)
|
| 75 |
# 4)Month (short text)
|
| 76 |
# 5)Month (2-digit)
|
| 77 |
# 6)Day of month (2-digit)
|
| 78 |
# 7)Day of week (long text)
|
| 79 |
# 8)Day of week (short text)
|
| 80 |
# 9)Day of week (single digit)
|
| 81 |
# 10)Hour (24-hour, 2-digit)
|
| 82 |
# 11)Hour (12-hour, 2-digit)
|
| 83 |
# 12)AM or PM, as a text string
|
| 84 |
# 13)Minutes (2-digit)
|
| 85 |
# 14)Seconds (2-digit)
|
| 86 |
#
|
| 87 |
nice /etc/cron.custom/scripts/master_logged ${DATE_YEAR4} ${DATE_YEAR2} ${DATE_MONTH_LONG} ${DATE_MONTH_SHORT} ${DATE_MONTH2} ${DATE_DOM2} ${DATE_DOW_LONG} ${DATE_DOW_SHORT} ${DATE_DOW_DIGIT} ${DATE_HOUR_24} ${DATE_HOUR_12} ${DATE_AM_PM} ${DATE_MIN2} ${DATE_SEC2} &>/hl/logs/maint_auto_root/log_in_progress.txt
|
| 88 |
#
|
| 89 |
#Change to a safe working directory in case something goes wrong,
|
| 90 |
#especially a failed cd followed by a mass delete.
|
| 91 |
cd /root/cronjob_sandbox
|
| 92 |
#
|
| 93 |
#Do an atomic move to replace the file that Apache can serve.
|
| 94 |
#The presumed atomic move below should prevent any race conditions
|
| 95 |
#with Apache. My understanding of Unix is that if the log file is open and another file
|
| 96 |
#is moved on top of it, it will stay available until it is closed. The
|
| 97 |
#atomic move should be SSD-friendly.
|
| 98 |
mv -f /hl/logs/maint_auto_root/log_in_progress.txt /hl/logs/maint_auto_root/${DATE_YEAR4}${DATE_MONTH2}${DATE_DOM2}_${DATE_HOUR_24}${DATE_MIN2}${DATE_SEC2}.txt
|
| 99 |
#
|
| 100 |
#We want to be really careful with this next section because of
|
| 101 |
#the recursive rm. Want to be sure the directory exists.
|
| 102 |
#
|
| 103 |
#Maintain about 90 days worth of logs. 24*90=2160.
|
| 104 |
if [ -d /hl/logs/maint_auto_root ] ; then
|
| 105 |
cd /hl/logs/maint_auto_root
|
| 106 |
rm -f `ls -1t | sed -e '2161,$!d'`
|
| 107 |
cd /root/cronjob_sandbox
|
| 108 |
fi
|
| 109 |
#
|
| 110 |
#Change to a safe working directory in case something goes wrong,
|
| 111 |
#especially a failed cd followed by a mass delete.
|
| 112 |
cd /root/cronjob_sandbox
|
| 113 |
#
|
| 114 |
#Remove the lock file.
|
| 115 |
rm /etc/cron.custom/lockfiles/auto_maint_cron_lock
|
| 116 |
fi
|
| 117 |
fi
|
| 118 |
fi
|
| 119 |
#End of script.
|
Parent Directory
| 
Revision Log