Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
It depends on what is causing the command line length problem.
At the moment you can not read operations from a file. This is a proposal that is being put forward for IM version 7, But essentially requires a re-working of the command line API interface to allow the use of files for operations, and the discontinuation of the legacy command line system.