Method one – this writes a remote file.
mysqldump [options] [db_name|--all-databases]| gzip -c | ssh user@host.com "cat > /path/to/new/file.sql.gz"

Method two – this writes directly into a remote mysql server
mysqldump [options] [db_name|--all-databases]| mysql --host=[remote host] –user=root –password=[pass] [db_name]

Here’s a simple solution. In this bash script I connect to MySQL and remove the current associations from posts and then randomly choose posts to be promoted to the Headline and Featured categories. This can be modified for other ideas you might have involving categories/posts/randomized associations in WordPress. You can also find the script here: http://pastebin.com/1QqiM5rh – wordpress is clobbering my line breaks so use the Pastebin version if you want to copy/paste the content.

The queries contain IDs for the Headline and Featured categories. In my installation, which will be different than yours, has the Headline category as ID=’103′ and Featured as ID=’104′ – replace as needed. I’m also doing some matching (see the WHERE sections) so that I don’t promote posts with certain IDs that are specific to the site for this script. You’ll want to customize the queries as needed for your site.

#!/bin/bash
#wordpress connection settings
USER="wordpress"
PASSWORD="password"
HOST="mysql.mysite.com"
DB="wordpress"
MYSQL="/usr/bin/mysql"
#remove current relationship for headline/post, set random post as headline
HEADLINE0="DELETE FROM wp_term_relationships WHERE term_taxonomy_id='103'; INSERT INTO wp_term_relationships (object_id,term_taxonomy_id,term_order) VALUES ((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'103','0');"
#select current headline post - for reference, we never use this in the script
HEADLINE1="select * from wp_term_relationships where term_taxonomy_id = '103';"
#remove current relationship for featured/post, set random post as featured
FEATURED0="DELETE FROM wp_term_relationships WHERE term_taxonomy_id='104'; INSERT INTO wp_term_relationships (object_id,term_taxonomy_id,term_order) VALUES
((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'104','0'),
((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'104','0'),
((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'104','0'),
((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'104','0'),
((select ID from wp_posts where post_name NOT LIKE '%autosave%' AND post_name != '' and post_name !='hello-world' AND ID !='2' AND ID !='16' AND ID !='35' AND ID !='44' ORDER BY RAND() LIMIT 1),'104','0');"
#execute queries
echo -n "Updating headline: "
until $MYSQL --user="$USER" --password="$PASSWORD" --host="$HOST" "$DB" -e "$HEADLINE0"; do
echo "[FAILED]"
echo -n "Running again: "
done
echo "[OK]"
echo -n "Updating featured: "
until $MYSQL --user="$USER" --password="$PASSWORD" --host="$HOST" "$DB" -e "$FEATURED0"; do
echo "[FAILED]"
echo -n "Running again: "
done
echo "[OK]"


wiki: http://wiki.maemo.org/N900_Mission_Control#Set_all_SIP_accounts_to_online_or_offline
pastebin: http://pastebin.com/qAC57E1N

1. Download all packages from SunFreeware.com
   • dependency: libintl-3.4.0-sol10-x86-local
   • dependency: libiconv-1.13.1-sol10-x86-local
   • dependency: gmp-4.2.1-sol10-x86-local
   • dependency: gcc-3.4.6-sol10-x86-local or libgcc-3.4.6-sol10-x86-local depending on your system needs
   • coreutils-8.4-sol10-x86-local
2. Install ‘coreutils’ dependency packages using the command “pkgadd -d [package_name]
3. Install ‘coreutils’ packages using the command “pkgadd -d coreutils-8.4-sol10-x86-local
4. Enable color aliases in your rc file: “alias ls=’/usr/local/bin/ls –color=auto’”

Create an expect script:
/path/to/sshmysql.exp

#!/usr/bin/expect -f
#script by darren cassar
#mysqlpreacher.com

set machine [lindex $argv 0]

set timeout -1

spawn ssh username@$machine
match_max 100000
expect -exact “assword: ”
send — “password\r”
send — “sudo -k; sudo su – mysql\r”
expect -exact “sudo -k; sudo su – mysql”
expect -exact “assword:”
send — “password\r”
interact

# you should change the word password in ’send — “password\r”‘ to your login password
# if you have the same password for each environment you could also script logging into mysql directly from the same expect script BUT that is not recommended.

Create a bash script:
/path/to/login.sh

#!/bin/bash
#script by darren cassar
#mysqlpreacher.com

sm=’/path/to/sshmysql.exp’

menu() {
echo ” 101 – dev.databaseserver1 ”
echo ” 102 – dev.databaseserver2 ”
echo ” 103 – dev.databaseserver3 ”
echo ” 201 – qa.databaseserver1 ”
echo ” 301 – uat.databaseserver1 ”
echo ” 302 – uat.databaseserver2 ”
echo ” 401 – prod.databaseserver1 ”
echo ” ”
}

ARGUMENT=notmenu

if [ -z "$1" ]
then
ARGUMENT=menu
else
choice=$1
fi

if [ $ARGUMENT = "menu" ]
then
menu
else
case “$choice” in
101|dev.databaseserver1 ) $sm dev.databaseserver1;;
102|dev.databaseserver2 ) $sm dev.databaseserver2;;
103|dev.databaseserver3 ) $sm dev.databaseserver3;;
201|qa.databaseserver1 ) $sm qa.databaseserver1;;
301|uat.databaseserver1 ) $sm uat.databaseserver1;;
302|uat.databaseserver2 ) $sm uat.databaseserver2;;
401|prod.databaseserver1 ) $sm prod.databaseserver1;;
* ) echo “Wrong value passed to script”
menu ;;
esac
fi

alias l=’/path/to/login.sh’

Output:

[darrencassar@mymachine ~ ]$ l
101 – dev.databaseserver1
102 – dev.databaseserver2
103 – dev.databaseserver3
201 – qa.databaseserver1
301 – uat.databaseserver1
302 – uat.databaseserver2
401 – prod.databaseserver1

Output:
The below command would log you into the first development database server as mysql user.

[darrencassar@mymachine ~ ]$ l 101

On each machine place aliases for each instance in the .profile

alias use3306=’mysql -u root -p -h 127.0.0.1 -P 3306 –prompt=”mysql \D> “‘

The above setup can be used using any client/server OS: Linux, Solaris, MAC OS or Windows(running Cygwin)

NOTE: If you store the password in clear text inside the expect script, you should at least save the scripts inside an encrypted partition on your machine and make sure that folder is not shared or accessible by anyone. Another way of doing it would be to use either SSHKeys OR save the password inside a file and encrypt it using OpenSSL

Enjoy!