WordPress at a glance
action is not described

install_plugins_pre_(tab) action-hook . WP 2.7.0

Fires before each tab on the Install Plugins screen is loaded.

The dynamic portion of the action hook, $tab, allows for targeting individual tabs, for instance 'install_plugins_pre_plugin-information'.

Usage

add_action( 'install_plugins_pre_(tab)', 'action_function_name_7453' );
function action_function_name_7453(){
	// action...
}

Where the hook is called

In file: /wp-admin/plugin-install.php
install_plugins_pre_(tab)
wp-admin/plugin-install.php 67
do_action( "install_plugins_pre_{$tab}" );

Where the hook is used (in WP core)

wp-admin/includes/admin-filters.php 93
add_action( 'install_plugins_pre_plugin-information', 'install_plugin_information' );