Aligns all pairs of sequences in a FASTA file using global alignment.
Alignments are constructed and reported unconditionally; accept and
termination conditions are not supported. Multithreading is not
supported, though it could be implemented.
You must either specify the -acceptall option, which
aligns all pairs (except those for which no HSP is found), or
Standard output file
usearch -allpairs_global pairs.fasta