Download and merge multiple PacBio reads from the same experiment

Question

[Sbrillo]

Hi!

I want to download all the PacBio reads from this experiment: SRS667972 ( SRX668744 - SRX668812) using the SRA-toolkit

I know from a previous post that something like that should work:

 for (( i = 744; i <= 812; i++ ))
  do
  fastq-dump --accession SRX668$1
done

How can I change the loop to merge all the reads together while downloading them?