Chapter 11 Using Control Scripts

Control scripts can perform a wide variety of customization and configuration tasks, such as:

Verifying if someone is actively using the product and, if so, preventing reinstallation, update or removal.
Ensuring the local host system is compatible with the software (scripts can check beyond the compatibility enforced by the product's uname attributes).
Removing obsolete files or previously installed versions of the product.
Creating links to, or additional copies of, files after they have been installed.
Copying configurable files into place on first-time installation.
Conditionally copying configurable files into place on later updates.
Modifying existing configuration files for new features.
Rebuilding custom versions of configuration files.
Creating device files or custom programs.
Killing and/or starting daemons.

Topic	Page
“Types of Control Scripts ”	“Types of Control Scripts ”
“Environment Variables ”	“Environment Variables ”
“Execution of Control Scripts ”	“Execution of Control Scripts ”
“Execution of Other Commands by Control Scripts ”	“Execution of Other Commands by Control Scripts ”
“Input To and Output From Control Scripts”	“Input To and Output From Control Scripts”
“File Management by Control Scripts”	“File Management by Control Scripts”
“Testing Control Scripts ”	“Testing Control Scripts ”

Technical documentation