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Revision 71 - (hide annotations) (download)
Sat Nov 5 11:07:06 2016 UTC (7 years, 7 months ago) by dashley
File size: 6756 byte(s)
Set EOL properties appropriately to facilitate simultaneous Linux and Windows development.
1 dashley 60 #!/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.

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