DB2fasta [-vU] [-wint(80)] path:db
The set of .fasta files for the given DB are recreated from the DB exactly as they were input. That is, this is a perfect inversion, including the reconstitution of the proper .fasta headers. Because of this property, one can, if desired, delete the .fasta source files once they are in the DB as they can always be recreated from it. By default the output sequences are in lower case and 80 chars per line. The -U option specifies upper case should be used, and the characters per line, or line width, can be set to any positive value with the -w option.