Combinatorial or sequential mode
Reactants are processed according to the --mode (-m) command line parameter in either combinatorial or sequential mode (default setting is: seq). In combinatorial mode all possible groupings are processed, while in sequential mode reactant molecules with the same order index are grouped, and repeating the last molecules if input files contain different number of molecules.
- react -r da.mrv file1.mrv file2.mrv -m seq 
 C1CCC=CC1
 CC1CCC(C)=C(C)C1
 CC1CC(C)=C(C)CC1C
- react -r da.mrv file1.mrv file2.mrv -m comb 
 C1CCC=CC1
 CC1CCC=CC1
 CC1CC=CCC1C
 CC1=C(C)CCCC1
 CC1CCC(C)=C(C)C1
 CC1CC(C)=C(C)CC1C- Note: Results are written to the console.