Drush 是一个可以通过命令行来管理 Drupal 网站的东西，使用 Drush 升级 Drupal，只需要一条命令：drush up drupal
安装Drush Install/Update - Unix/OSX
The easiest way to install the latest release of Drush on Unix/Linux systems is via our custom PEAR channel.
Tip: Use sudo to overcome permission problems. If the channel-discover fails, try running the following sequence of commands:
To update, run pear upgrade drush/drush
注意事项：
Drush 升级drupal 范例：
[[email protected]]# pear upgrade drush/drush
Nothing to upgrade
[[email protected]]# drush up drupal
Command pm-update needs a higher bootstrap level to run - you will need to invoke drush from a more functional Drupal environment to run this [error]
command.
Command pm-update needs the following modules installed/enabled to run: update. [error]
The drush command 'up drupal' could not be executed. [error]
A Drupal installation directory could not be found [error]
[[email protected]]# cd drupal_root_public_html/
[[email protected]]# drush up drupal
Checking available update data ... [ok]
Checked available update data for Address Field. [ok]
Checked available update data for AddToAny. [ok]
Checked available update data for Advanced help. [ok]
Checked available update data for Affiliates. [ok]
Checked available update data for Block. [ok]
Checked available update data for CAPTCHA. [ok]
Checked available update data for CKEditor. [ok]
Checked available update data for Node clone. [ok]
Checked available update data for Countries. [ok]
Checked available update data for Chaos tools. [ok]
Checked available update data for Current Search Blocks. [ok]
Checked available update data for Custom Search. [ok]
Checked available update data for Devel. [ok]
Checked available update data for Theme developer. [ok]
Checked available update data for Entity API. [ok]
Checked available update data for Forward. [ok]
Checked available update data for Global Redirect. [ok]
Checked available update data for Gotwo. [ok]
Checked available update data for IMCE. [ok]
Checked available update data for Meta tags. [ok]
Checked available update data for Node Reference. [ok]
Checked available update data for Page Title. [ok]
Checked available update data for Pathauto. [ok]
Checked available update data for Private messages. [ok]
Checked available update data for User Referral 2. [ok]
Checked available update data for Rules. [ok]
Checked available update data for Search API. [ok]
Checked available update data for Search ranges. [ok]
Checked available update data for Services. [ok]
Checked available update data for simplehtmldom API. [ok]
Checked available update data for SMTP Authentication Support. [ok]
Checked available update data for Token. [ok]
Checked available update data for Userpoints. [ok]
Checked available update data for Viewfield. [ok]
Checked available update data for Views. [ok]
Checked available update data for Alpha. [ok]
Checked available update data for Zen. [ok]
Checked available update data for 37 projects. [status]
Update information last refreshed: Fri, 04/19/2013 - 10:11
Update status information on all installed and enabled Drupal projects:
Name Installed version Proposed version Status
Address Field (addressfield) 7.x-1.0-beta3 7.x-1.0-beta3 Up to date
AddToAny (addtoany) 7.x-4.0 7.x-4.0 Up to date
Advanced help (advanced_help) 7.x-1.0 7.x-1.0 Up to date
Affiliates (affiliates) 7.x-1.0 7.x-1.0 Up to date
Drupal 7.19 7.22 SECURITY UPDATE available
CAPTCHA (captcha) 7.x-1.0-beta2 7.x-1.0-beta2 Up to date
CKEditor (ckeditor) 7.x-1.12 7.x-1.13 Update available
node_clone 7.x-1.0-rc1 7.x-1.0-rc1 Up to date
Countries (countries) 7.x-2.1 7.x-2.1 Up to date
Chaos tools (ctools) 7.x-1.2 7.x-1.3 SECURITY UPDATE available
Facet API (facetapi) 7.x-1.2 7.x-1.3 Update available
Custom Search (custom_search) 7.x-1.11 7.x-1.11 Up to date
Devel (devel) 7.x-1.3 7.x-1.3 Up to date
Theme developer (devel_themer) 7.x-1.x-dev 7.x-1.x-dev Update available
Entity API (entity) 7.x-1.0 7.x-1.0 Up to date
Forward (forward) 7.x-2.0-beta2 7.x-2.0-beta2 Up to date
Global Redirect (globalredirect) 7.x-1.5 7.x-1.5 Up to date
Gotwo (gotwo) 7.x-1.1 7.x-1.1 Up to date
IMCE (imce) 7.x-1.7 7.x-1.7 Up to date
Meta tags (metatag) 7.x-1.0-beta4 7.x-1.0-beta6 Update available
References (references) 7.x-2.1 7.x-2.1 Up to date
Page Title (page_title) 7.x-2.7 7.x-2.7 Up to date
Pathauto (pathauto) 7.x-1.2 7.x-1.2 Up to date
Private messages (privatemsg) 7.x-1.3 7.x-1.3 Up to date
User Referral 2 (referral) 7.x-1.0-beta4 7.x-1.0-beta4 Up to date
Rules (rules) 7.x-2.2 7.x-2.3 SECURITY UPDATE available
Search API (search_api) 7.x-1.4 7.x-1.4 Up to date
Search ranges (search_api_ranges) 7.x-1.4 7.x-1.4 Up to date
Services (services) 7.x-3.3 7.x-3.3 Up to date
simplehtmldom API (simplehtmldom) 7.x-1.12 7.x-1.12 Up to date
SMTP Authentication Support (smtp) 7.x-1.0 7.x-1.0 Up to date
Token (token) 7.x-1.5 7.x-1.5 Up to date
Userpoints (userpoints) 7.x-1.0 7.x-1.0 Up to date
Viewfield (viewfield) 7.x-2.0 7.x-2.0 Up to date
Views (views) 7.x-3.5 7.x-3.7 SECURITY UPDATE available
Omega (omega) 7.x-3.1 7.x-3.1 Up to date
Zen (zen) 7.x-5.1 7.x-5.1 Up to date
Code updates will be made to drupal core.
WARNING: Updating core will discard any modifications made to Drupal core files, most noteworthy among these are .htaccess and robots.txt. If you have made any modifications to these files, please back them up before updating so that you can re-create your modifications in the updated version of the file.
Note: Updating core can potentially break your site. It is NOT recommended to update production sites without prior testing.
Do you really want to continue? (y/n): y
Project drupal was updated successfully. Installed version is now 7.22.
Backups were saved into the directory /root/drush-backups/ctohome.com/20130420010815/drupal. [ok]
'all' cache was cleared in /home/ctohome.com/public_html#default [success]
You have pending database updates. Run `drush updatedb` or visit update.php in your browser. [warning]
The following updates are pending:
system module :
7078 - Add binary to {date_formats}.format.
dblog module :
7002 - Add an index to the severity column in the watchdog database table.
field module :
7003 - Add the FieldInfo class to the class registry.
Do you wish to run all pending updates? (y/n): y
Performed update: field_update_7003 [ok]
Performed update: dblog_update_7002 [ok]
Performed update: system_update_7078 [ok]
Finished performing updates.