This bash script is to be run from local machine and it copies remote web files and database to local folder.

webhost_bkup

# Assumptions
#########################
# remote_host: 	example.com
# remote_user: 	johndoe
# db_user:	mydbuser
# db_pass:	mydbpass
# db_name:	mydbname

# to dump mysql database in the remote system from local system
ssh johndoe@example.com 'mysqldump -u mydbuser --password=mydbpass mydbname > /destination/path/dump_filename.sql'

# to sync remote folder with local folder (incremental sync)
rsync -ravz --progress -e "ssh -l johndoe" --delete example.com:/path/of/remote/folder/ /path/of/local/folder/

# References
# 1. SSH Man Page:- http://unixhelp.ed.ac.uk/CGI/man-cgi?ssh+1
# 2. RSYNC Man Page:- http://linux.die.net/man/1/rsync
# 3. Passwordless SSH Login: http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/internet/node31.html