date

#/bin/sh
foo=`date +%Y-%m-%d`
mkdir /usr/backup/$foo
tar -cjf /usr/backup/$foo/home.tar.bz2 /home
tar -cjf /usr/backup/$foo/etc.tar.bz2 /etc
tar -cjf /usr/backup/$foo/var.tar.bz2 /var
tar -cjf /usr/backup/$foo/usr_local.tar.bz2 /usr/local