Each application is designed to be executed from a terminal command line, typically reading and writing a set of data files associated with a particular case. The data files for a case are stored in a directory named after the case as described in section 4.1; the directory name with full path is here given the generic name <caseDir>.
For any application, the form of the command line entry for any can be found by simply entering the application name at the command line with the -help option, e.g. typing
Usage: blockMesh [-region region name] [-case dir] [-blockTopology]
[-help] [-doc] [-srcDoc]
Like any UNIX/Linux executable, applications can be run as a background process, i.e. one which does not have to be completed before the user can give the shell additional commands. If the user wished to run the blockMesh example as a background process and output the case progress to a log file, they could enter:
blockMesh > log &
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