The second step in the process is the positioning of the molecule in the electron density with the program Blob. If you survived to this point your home free. Invoking Blob results in the error message:
| USAGE: Blob | -o[required] Output File |
| -p[required] Parameter File | |
| -d[optional] Directory | |
| -m[optional] Mode | |
| -r[optional] Random Seed |
The last three options can safely be ignored: they are for either more advanced searches (to be described later) or for debugging. Thus the only two necessary command line options are the -o option which tells where the output should be written and the -p option which tells Blob what the parameter file is. Thus the correct usage is
| Blob -o ZZZ.blb -p ZZZ.par |
where again ZZZ.par is the parameter file created in section 3 and ZZZ.blb is the output file.