> $ obabel '-:C(=O)Cl' -O /tmp/acidchloride.png > 1 molecule converted
This is sent to the standard error, you can do: obabel '-:C(=O)Cl' -O /tmp/acidchloride.png 2>/dev/null Hope that helps, -Geoff _______________________________________________ OpenBabel-discuss mailing list OpenBabel-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openbabel-discuss