#! /bin/bash
								# Change next four values to suit your needs
cd $HOME							# get to home directory - it's where I do backups
tarfilename=backup						# Set defaults. These are the parameters to modify for 
filelistname=bin/backuplist					# alternate behavior.
full=1								# Assume full backup; adjust backup file list mod. date
								# 
								# check for command line parameters. If any, assume the
								# first is the name of the backup tar file, and the
								# second the backup file list. Any value given for the
								# third parameter indicates an incrementall backup.
								# 
if [ $# -gt 0 ]							# if the number of arguments is greater than 0,
then								# 
 tarfilename=$1							# get the destination tar filename
fi								# Destination filename for backup is always first
								# 
if [ $# -gt 1 ]							# if the number of arguments is greater than 1,
then								# 
 filelistname=$2						# get the list of files to back up.
fi								# list of files to back up is always second
								# 
if [ $# -gt 2 ] 						# if the number of arguments is greater than 2, this is
then								# an incremental backup - don't touch backup list file.
 full=$3							# contents of full really doesn't matter - just change it.
fi								# 
								# 
tar -cvf $tarfilename.tar -T $filelistname			# create tarball $1 using file named $2, show tar progress
gzip $tarfilename.tar						# now compress it.
set `date '+%m %d %y'`						# get the date and format it.
mv $tarfilename.tar.gz $tarfilename"_"$1"-"$2"-"$3".tar.gz"	# insert current date into the gzipped tarball filename
								# leave it in the current directory to be copied onto CD
if [ $full = 1 ]						# 
then								# check the full/incremental flag
 var=`which bu2`						# get path to incremental backup script.
 touch $var							# if full = 1 (not "inc" or anything else), then
fi								# set file modification date to current date
								# Now we're done.