NAME
    update_blastdb.pl - Download pre-formatted BLAST databases from NCBI

SYNOPSIS
    update_blastdb.pl [options] blastdb ...

OPTIONS
    --decompress
      Downloads, decompresses the archives in the current working directory,
      and deletes the downloaded archive to save disk space, while
      preserving the archive checksum files (default: false). Note: Using
      this option may require more computing resources than using your
      system's native decompression tool(s).

    --showall
      Show all available pre-formatted BLAST databases (default: false). The
      output of this option lists the database names which should be used
      when requesting downloads or updates using this script.

    --passive
      Use passive FTP, useful when behind a firewall (default: false).

    --timeout
      Timeout on connection to NCBI (default: 120 seconds).

    --force
      Force download even if there is a archive already on local directory
      (default: false).

    --verbose
      Increment verbosity level (default: 1). Repeat this option multiple
      times to increase the verbosity level (maximum 2).

    --quiet
      Produce no output (default: false). Overrides the --verbose option.

    --version
      Prints this script's version. Overrides all other options.

DESCRIPTION
    This script will download the pre-formatted BLAST databases requested in
    the command line from the NCBI ftp site.

EXIT CODES
    This script returns 0 on successful operations that result in no
    downloads, 1 on successful operations that downloaded files, and 2 on
    errors.

BUGS
    Please report them to <blast-help@ncbi.nlm.nih.gov>

COPYRIGHT
    See PUBLIC DOMAIN NOTICE included at the top of this script.