How I upgrade my WordPress installations

I have three blogs run on WordPress. Each runs on its own installation of WordPress. Why? Because all the single-install solutions I’ve seen were not very attractive. Convince me otherwise.

Following the official instructions, I drew up this set of instructions which work for me.

Hopefully, they work for you too. But I’m sure it’d going to be cryptic at first. My WordPress is installed in the directory wordpress.installed. The webserver looks for www, which is a symlink to WordPress. I change this symlink after the upgrade for testing. This keeps the old install intact, without having to restart the webserver.

First, disable the plugins, but I’m not showing you how to do that.

This step assumes wordpress is installed into the directory www.

cd /wherever/path/of/your/installed/wordpress
tar -xzf latest.tar.gz
mv wordpress wordpress.NEW
cp -Rp www wordpress.OLD
rm -rf wordpress.OLD/wp-includes
rm -rf wordpress.OLD/wp-admin
mv wordpress.NEW/wp-includes    wordpress.OLD
mv wordpress.NEW/wp-admin       wordpress.OLD
cp -Rp wordpress.NEW/wp-content wordpress.OLD
rm -rf wordpress.NEW/wp-content
mv wordpress.NEW/* wordpress.OLD/
rmdir wordpress.NEW
mv www www.DELETEME && mv wordpress.OLD www

Check the website, if all is well, enable the plugins. If all is well:

rm -rf wordpress.DELETEME latest.tar.gz

If the website was not OK:

mv www wordpress.OLD && mv www.DELETEME www

Fix the problem, then move the directories back.

If all is OK, you’re done.

Do remember to enable the plugins that you disabled.

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