How to install a Magento extension through the command line?
If you have SSH access to your web hosting account, you can easily install a Magento extension through the command line.
To do it, open an SSH connection to your account and enter the following command:
./pear install Magento_extension_key
In the above command line replace Magento_extension_key with the exact key for the chosen extension.
In the following example we show you how to install a classic theme extension through the command line:
./pear install magento-community/magento_classic_theme_free
downloading magento_classic_theme_free-220.127.116.11.tgz ...
Starting to download magento_classic_theme_free-18.104.22.168.tgz (3,687,973 bytes)
.......................done: 3,687,973 bytes
install ok: channel://connect.magentocommerce.com/community/magento_classic_theme_free-22.214.171.124
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