For some study i need to download from NCBI a list of ACC from a taxonomy group. I need to get the nucleotides and protein acc list. I can download this list from the web site of NCBI, using the "Send to" button and following with the good selection of the data. As i have to do for more than 2 taxonomy references, i'll use esearch and efetch, like this:
esearch -db nuccore -query "txid9606[Organism:exp]" | efetch -format=acc -mode text > list-acc.txt
The problem is that when using the navigator let me download a 6 millions lines file in less tahn 20 minutes, the same need more than hours with the command line. I'm wrong with my command line? O there is no other option to automate this process?