In this example, we configure Velvet [Zerbino and Birney, 2008], a popular de novo assembler for next-generation sequencing data, as a standard external application.
Example: Velvet (standard external application)
The Velvet package includes two programs that need to be run consecutively. The external applications system on the CLC Server is designed to call one program, so a wrapper script is needed to make the needed consecutive calls to the Velvet applications.
An example script as well as a configuration file are available in a zip file at https://resources.qiagenbioinformatics.com/external-applications/velvet-example.zip. These will be used to illustrate how this sort of application can be configured as an external application on a CLC Server.