What this tool does
Uses the Open Babel Obgrep to search for molecules inside multi-molecule files (e.g. SMI, SDF, etc.) or across multiple files. Not all SMARTS features from the original implementation in the Daylight Toolkit are supported by OpenBabel; please have a look here.
The search query can be submitted either as a single SMARTS pattern or as a file containing multiple SMARTS patterns.
Same as input format.