The code for the backup_crm.sh file is:
Code:
#!/bin/bash
#
# This program is open source, free for use by anyone, subject to GPLv2 licensing
# All caveats regarding use of open-source programs apply;
# I did my best but it is your responsibility to understand the program and check its suitability for you
# Authored by Richard Cantin, Ayuda, www.ayuda.ca
#
# This program backs up the directories in the list shown below
# - to a $Target_Directory directory predefined as tmp/backups (creates one if it does not already exist)
# - to a remote ftp site (you specify)
#
# The program creates a backup every night and stores
# - a rolling week's worth of backups (Monday through Sunday each day has its own backup)
# - a monthly backup with each month kept until it is replaced by next year's equivalent monthly backup
#
# If you want the same setup I have, the program will work as is, without any editing, other than
# - declaring the name of the server (text field for you use only)
# - declaring the directories you want backed up
# - declaring the ftp parameters
#
# To install and configure this program (assuming you want to stay with my settings (below)
# Create a /backup-scripts directory in the /root directory and put this file, named backup_crm.sh, with executable permission,into the /root/backup-scripts directory
# Add to crontab the schedule for this program
# (with these settings, the Program runs every night at 3:07AM)
# 7 3 * * * root /root/backup-scripts/backup_crm.sh >/dev/null 2>&1
#
# If there is an error in either the tar process or the ftp transfer the program sends an email to the root user of the server
# So if you have root aliased to an admin account or if you want to change the MailTo below
# you will get notified of any errors.
#
#####################################################
#
# Your ftp site parameters - you need to specify your ftp site
# (Note: ftp_host is the full url to your ftp site)
#
ftp_host="put_your_host_url_in_here_between_the_quotes"
ftp_userid=" put_your_ftp_userid_in_here_between_the_quotes"
ftp_password=" put_your_ftp_password_in_here_between_the_quotes"
#####################################################
#
# The Server Name - text entry to describe which server is being backed up (Useful for admins who look after more than one server)
#
Server_Name="put_a_(short)_text_description_of_your_server_here"
# The list of Directories to be backed up
# You can add to this list of Directories for each additional Directory you want to back up
# - add a new Array entry with a number next in sequence (sequence starts at 1)
# - You do NOT need to start or end the Directory name with a /
# correct sample: Source_Directory[1]="var/www/html"
# incorrect sample: Source_Directory[1]="/var/www/html/"
#
Source_Directory[1]="put_your_first_directory_here"
Source_Directory[2]=" put_your_second_directory_here "
Source_Directory[3]=" add_as_many_as_you_like "
Source_Directory[4]=" delete_these_samples "
#####################################################
#
# This defines variables and parameters used in the program
# You should NOT be making changes to these parameters unless you plan to re-write the program
#
date_for_monthly_backup="03"
this_date=$(date +"%d")
this_month=$(date +"%m-%b")
this_weekday=$(date +"%u-%a")
File_Prefix="prod"
File_Suffix=".tar.gz"
Target_Directory="/tmp/backups/"
# Set parameters used to e-mail errors
Mailer="/bin/mail"
MailTo="root"
#####################################################
#
# Do NOT edit anythihng below here - this is the core program
#
#Create the names (Daily and Monthly) for each Directory backup file
Num_Backup_Directories=${#Source_Directory[@]}
Dir_Count=1
while [ ${Dir_Count} -le ${Num_Backup_Directories} ]
do
# Strip any spaces from the Source Directory Name
Dir_Name=$(echo ${Source_Directory[${Dir_Count}]} | tr -d [:space:] )
# Test if the Source Directory name has a leading / and if so, strip it off
First_Char=${Dir_Name:0:1}
if [ ${First_Char} == "/" ]
then
New_Dir_Name=${Dir_Name:1}
else
New_Dir_Name=${Dir_Name}
fi
# Test if the Source Directory name has a trailing / and if so, strip it off
Num_Char=${#New_Dir_Name}
let Char_Pointer=${Num_Char}-1
Last_Char=${New_Dir_Name:${Char_Pointer}}
if [ ${Last_Char} == "/" ]
then
Final_Dir_Name=${New_Dir_Name:0:${Char_Pointer}}
else
Final_Dir_Name=${New_Dir_Name}
fi
Source_Directory[${Dir_Count}]=${Final_Dir_Name}
# Replace any remaining / with - for the name to use for the backup file
Path_as_Name=$(echo ${Final_Dir_Name} | tr "\/" "-")
# Create File Names for Daily and Monthly backup files
Backup_Daily_to_Filename[${Dir_Count}]=${File_Prefix}"_"${Path_as_Name}"_"${this_weekday}${File_Suffix}
Backup_Monthly_to_Filename[${Dir_Count}]=${File_Prefix}"_"${Path_as_Name}"_m_"${this_month}${File_Suffix}
let Dir_Count=Dir_Count+1
done
# Check to see if the Directory specified in "Target_Directory" already exists
# If not, create it
if [ ! -d "${Target_Directory}" ]
then
mkdir "${Target_Directory}"
echo "New Directory created: "${Target_Directory}
fi
# Check to see if this is the date to do the Monthly backup as well as the Daily backup
# If so, set the counter to enable two backups per File - One for Daily and one for Monthly
if [ ${this_date} -eq ${date_for_monthly_backup} ]
then
# It is the date to do the Monthly backup as well as the Daily Backup
Num_Backups_per_File=2
else
# It is NOT the date to do the Monthly backup as well as the Daily Backup
Num_Backups_per_File=1
fi
# Create Daily (and if the right date, Monthly) backup tar.gz files and transfer them to the designated ftp site
Backup_Type[1]="Daily"
Backup_Type[2]="Monthly"
cd ${Target_Directory}
Dir_Count=1
while [ ${Dir_Count} -le ${Num_Backup_Directories} ]
do
#
# Create Daily (and if the right date, Monthly) backup tar.gz files (with error check if tar does not work)
tar -cvzf ${Backup_Daily_to_Filename[${Dir_Count}]} -C / ${Source_Directory[${Dir_Count}]} 2>error-message-daily.txt
Error_State=$?
wait
if [ ${Num_Backups_per_File} -eq 2 ]
then
cp ${Backup_Daily_to_Filename[${Dir_Count}]} ${Backup_Monthly_to_Filename[${Dir_Count}]}
wait
fi
Backup_Count=1
while [ ${Backup_Count} -le ${Num_Backups_per_File} ]
do
if [ ${Error_State} -eq 0 ]
then
Comp_Result="The compressed file was created for the "${Backup_Type[${Backup_Count}]}" backup of Directory: "${Source_Directory[${Dir_Count}]}" on Server: ""${Server_Name}"
echo ${Comp_Result}
# Send the Daily/Monthly backup tar.gz file to the designated ftp site (with error check if transfer does not work)
if [ ${Backup_Count} -eq 1 ]
then
File_to_Transfer=${Backup_Daily_to_Filename[${Dir_Count}]}
else
File_to_Transfer=${Backup_Monthly_to_Filename[${Dir_Count}]}
fi
ftp -inv ${ftp_host} >/tmp/backups/ftp.log 2>&1 << end-ftp-session
user ${ftp_userid} ${ftp_password}
binary
lcd ${Target_Directory}
put ${File_to_Transfer}
bye
end-ftp-session
wait
# Check for successful transfer or report errors
Message=""
if [ $(grep -ic "226 Transfer complete" /tmp/backups/ftp.log) -ge 1 ]
then
Message="ftp for file ${File_to_Transfer} was successful"
echo ${Message}
else
if [ $(grep -ic "not connected" /tmp/backups/ftp.log) -ge 1 ]
then
Message="ftp for file ${File_to_Transfer} failed - no connection made to remote site"
echo ${Message}
fi
if [ $(grep -ic "No such file or directory" /tmp/backups/ftp.log) -ge 1 ]
then
Message="ftp for file ${File_to_Transfer} failed - file does not exist"
echo ${Message}
fi
if [ "${Message}" == "" ]
then
Message="ftp for file ${File_to_Transfer} failed for an unknown reason"
echo ${Message}
fi
Subject="Error! - ftp for backup of file ${File_to_Transfer} on ${Server_Name} failed"
echo "${Message}" | ${Mailer} -s "${Subject}" ${MailTo}
fi
else
Comp_Result="Error! - the compressed file was NOT properly created for the "${Backup_Type[${Backup_Count}]}" backup of Directory: "${Source_Directory[${Dir_Count}]}" on Server: ""${Server_Name}"
echo ${Comp_Result}
if [ ${Backup_Count} -eq 1 ]
then
Message=$(cat error-message-daily.txt)
else
Message="The Monthly backup file of of Directory:"${Source_Directory[${Dir_Count}]}" on Server: ""${Server_Name} failed because the Daily backup was never created. Fix the Daily backup."
fi
Subject="Error! - the compressed file was NOT properly created for the "${Backup_Type[${Backup_Count}]}" backup of Directory: "${Source_Directory[${Dir_Count}]}" on Server: ""${Server_Name}"
echo "${Message}" | ${Mailer} -s "${Subject}" ${MailTo}
fi
let Backup_Count=Backup_Count+1
done
let Dir_Count=Dir_Count+1
done
# If get to here, exit with no error flags
exit 0
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script to tar and backup directories to a remote ftp site
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