backup.sh

#!/bin/sh
# script to backup common files
# see also ~/.backupignore, ~/.archiveignore

print_usage () {
	#echo "Usage: ${0##*/} -l"
	echo "Usage: `basename $0` [-l | -x | -r]"
	return 0
}

generate_manifest () {
	ls -R /backup > /backup/Manifest
}

backup_rsync () {
  rsync $params $verbose $src $dest
}

case "$1" in
	"") print_usage; exit $E_PARAM;;
	# No backup type was given, printing usage and quit

	"-h" | "--help") print_usage; exit;;
	# print extended usage information

    "-v"| "--verbose") 
	verbose="-v";;
	# turn on rsync verbose flag
	
	#"-V") # version information

	"-l" | "--local")
	exclusions="$HOME/.backupignore"
	params="-av --del --exclude-from=$exclusions"
	src="/Users/joseph/"
	dest="/backup/joseph/"
	backup_rsync;;
	# local backup specified, backup home directory to somewhere on the same hard drive.

	"-r" | "--remote" )
	# destructively backup home
    	params="-rltvz --del"
    	src="/backup/joseph/"
    	dest="joyent:backup/joseph"
    	backup_rsync
    # safely backup archives and media
    	params="-rltvz --exclude-from=$HOME/.archiveignore"
        src="/backup/"
        dest="joyent:backup"
        backup_rsync;;
	# remote backup specified, backup from local backup to strongspace remote

	"-x" | "--external" )
	generate_manifest
	# destructively backup home
	    params="-av --del"
    	src="/backup/joseph/"
        dest="/Volumes/janice/backup/joseph"
        # dest="/Volumes/Macintosh\ HD/backup/joseph"
    	backup_rsync
	# safely backup archives and media 
        params="-av"
        src="/backup/"
        dest="/Volumes/janice/backup"
        # dest="/Volumes/Macintosh\ HD/backup/joseph"
        backup_rsync;;
	# remote backup specified, backup from local backup to external harddrive`

	*)  print_usage; exit $E_BADARGS;;
	# Something unexpected happened! print usage and quit
esac