Rsync

rsync -rvc  --delete --exclude-from=/home/ajcm/rsync-exclusion-svn source/ target/ 
ac - archive, checksum 
z - compress 
hv - versbose, human 
delete - clear other files in destiny n 
dry - does trial without changes

Wget

http://www.editcorp.com/Personal/Lars_Appel/wget/

# output to a file
wget --output-document <OUTPUT FILE> <URL>

# crawl a site''
wget <URL> -r --spider -nd  -o output.txt

#print to stdout (w/o debugging)
wget -qO- <URL>

# get page resources
-pk 

## cookies
wget -q  --keep-session-cookies  --save-cookies cookies.txt  "LINK"
wget --load-cookies cookies.txt "LINK"

## spider
wget    -r --spider -nd -p    --exclude-domains xxxx.com   -l 1 <http://yyyy.html>

Downloading entire site

http://www.linuxjournal.com/content/downloading-entire-web-site-wget

# if you ever need to download an entire Web site, perhaps for off-line viewing, wget can do the
# job—for example:

$ wget \\
     --recursive \\
     --no-clobber \\
     --page-requisites \\
     --html-extension \\
     --convert-links \\
     --restrict-file-names=windows \\
     --domains website.org \\
     --no-parent \\
         www.website.org/tutorials/html/

#This command downloads the Web site www.website.org/tutorials/html/.

The options are:

–recursive: download the entire Web site.
–domains website.org: don’t follow links outside website.org.
–no-parent: don’t follow links outside the directory tutorials/html/.
–page-requisites: get all the elements that compose the page (images, CSS and so on).
–html-extension: save files with the .html extension.
–convert-links: convert links so that they work locally, off-line.
–restrict-file-names=windows: modify filenames so that they will work in Windows as well.
–no-clobber: don’t overwrite any existing files (used in case the download is interrupted and
resumed).

SSH

Create private key

cat id_rsa.pub >> ~/.ssh/authorized_keys

rm id_rsa.pub

permissions to be: