from first ed:
"...
-query
The name (or path) of the FASTA-formatted file to search for as query sequences.
-subject
The name (or path) of the FASTA-formatted file to search in as subject sequences.
-evalue
Only HSPs with E values smaller than this should be reported. For example: -evalue 0.001 or -evalue 1e-6.
..."
missing in current ed :)