#!/bin/bash

###########################################################################################
#                                                                                         #
# Simple secure automatic backup script by Gothi[c]                                       #
# http://www.donationcoder.com                                                            #
#                                                                                         #
# Takes 1 argument: settings file                                                         #
#                                                                                         #
# Settings file can have the following directives:                                        #
#                                                                                         #
# - backup (which folder to back up)                                                      #
# - scphostname (scp remote machine host name)                                            #
# - scpusername (scp username on remote machine)                                          #
# - scpdestdir (scp destination folder on remote machine)(optional)                       #
# - except files (which files to exclude from the backup) (can have multiple directives)  #
# - logfile (where to log events)                                                         #
# - scpdestfile (optional filename on remote server, if not specified one will be         #
#                generated based on the current date)                                     #
# - enable scp (whether or not to enable scp upload of backups)                           #
# - enable email (whether or not to enable emailing backups)                              #
# - email (email address to send backups to, if enabled)                                  #
# - sendmail (optional)(path to the sendmail program, used to send email)                 #
#                                                                                         #
# Requires following GNU utilities to be installed (these are present on about any GNU    #
# system): cat,sed,grep,tar,bzip2                                                         #
#                                                                                         #
# Requires following GNU utilities to be installed for scp uploading: scp (openssh)       #
#                                                                                         #
# Requires following GNU utilities to be installed for emailing: sendmail, uuencode       #
#                                                                                         #
###########################################################################################

#### first check the sanity of our user. ####

if [ ! -n "$1" ]; then
 echo "ERROR: Missing settings file argument."
 echo "Usage: $0 settingsfile".
 exit $E_BADARGS
fi

#### check if settings file is readable ####

if [ ! -r "$1" ]; then
 echo "ERROR: Could not read provided settings file: $1."
 echo "Please ensure the file exists and that you have read permissions to it."
 exit $E_BADARGS
fi

#### init variables ####

SETTINGS_FILE=$1
LOCAL_SRC_FOLDER=`cat $SETTINGS_FILE | grep "backup:" | sed -e 's/backup:\( \)\?//g' | sed -e 's/\( \)\+//'`
ARCHIVE_FILENAME=`basename $LOCAL_SRC_FOLDER`-`date +%F`.tar.bz2
REMOTE_HOSTNAME=`cat $SETTINGS_FILE | grep "scphostname:" | sed -e 's/scphostname:\( \)\?//g' | sed -e 's/\( \)\+//'`
REMOTE_USERNAME=`cat $SETTINGS_FILE | grep "scpusername:" | sed -e 's/scpusername:\( \)\?//g' | sed -e 's/\( \)\+//'`
REMOTE_DIRECTORY=`cat $SETTINGS_FILE | grep "scpdestdir:" | sed -e 's/scpdestdir:\( \)\?//g' | sed -e 's/\( \)\+//'`
REMOTE_FILENAME=`cat $SETTINGS_FILE | grep "scpdestfile:" | sed -e 's/scpdestfile:\( \)\?//g' | sed -e 's/\( \)\+//'`
LOG_FILE=`cat $SETTINGS_FILE | grep "logfile:" | sed -e 's/logfile:\( \)\?//g' | sed -e 's/\( \)\+//'`
EXCEPTIONS=( `cat $SETTINGS_FILE | grep "except files:" | sed -e 's/except files:\( \)\?//g' | sed -e 's/\( \)\+//' | sed ':a;N;$!ba;$s/\(.*\)\n/\1 /'` )
EMAIL=`cat $SETTINGS_FILE | grep "email:" | sed -e 's/email:\( \)\?//g' | sed -e 's/\( \)\+//'`
SCP_ENABLED=`cat $SETTINGS_FILE | grep "enable scp:" | sed -e 's/enable scp:\( \)\?//g' | sed -e 's/\( \)\+//'`
EMAIL_ENABLED=`cat $SETTINGS_FILE | grep "enable email:" | sed -e 's/enable email:\( \)\?//g' | sed -e 's/\( \)\+//'`
PROG_SENDMAIL=`cat $SETTINGS_FILE | grep "sendmail:" | sed -e 's/sendmail:\( \)\?//g' | sed -e 's/\( \)\+//'`

#### create archive ####

TAR_COMMAND="-cvjf /tmp/$ARCHIVE_FILENAME $LOCAL_SRC_FOLDER"
for exception in $(seq 0 $((${#EXCEPTIONS[@]} - 1))); do
 TAR_COMMAND="$TAR_COMMAND --exclude ${EXCEPTIONS[$exception]}"
done
tar $TAR_COMMAND &> /dev/null

#### scp upload ####

if test "$SCP_ENABLED" != ""; then
 if test "$REMOTE_FILENAME" = ""; then
   SCP_REMOTE_FILE="."
 else
   SCP_REMOTE_FILE=$REMOTE_FILENAME
 fi
 SCP_COMMAND="/tmp/$ARCHIVE_FILENAME $REMOTE_USERNAME@$REMOTE_HOSTNAME:.$REMOTE_DIRECTORY/$SCP_REMOTE_FILE"
 scp $SCP_COMMAND &> /dev/null
fi

#### email upload ####
echo "email enabled = $EMAIL_ENABLED"
if test "$EMAIL_ENABLED" != ""; then
 echo "email enabled"
 if test "$PROG_SENDMAIL" = ""; then
   PROG_SENDMAIL="sendmail"
 fi
 if test "$EMAIL" != ""; then
   cat /tmp/$ARCHIVE_FILENAME | uuencode /tmp/$ARCHIVE_FILENAME | ${PROG_SENDMAIL} $EMAIL
   echo "email sent"
 fi
fi

#### delete temporary archive file ####

rm /tmp/$ARCHIVE_FILENAME

#### logging ####

if test "$LOG_FILE" != ""; then
 touch $LOG_FILE
 if [ -w $LOG_FILE ]; then
   THE_DATE=`date +%F`
   THE_TIME=`date +%T`
   echo "[$THE_DATE] ($THE_TIME): Completed backup for $SETTINGS_FILE." >> $LOG_FILE
 fi
fi

exit 0

You are viewing proxied material from gopher.linkerror.com. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.