dictionary files of a particular name and extracts entries of a
particular keyword, sorting results into a unique list.
For example,
foamSearch $FOAM_TUTORIALS laplacianSchemes.default fvSchemes
produces...
default Gauss linear corrected;
default Gauss linear limited corrected 0.33;
default Gauss linear limited corrected 0.5;
default Gauss linear orthogonal;
default Gauss linear uncorrected;
default none;
Uses the fantastic foamDictionary utility.
