Downloading FASTA Records with GI Number via efetch?

[mapauley]

Is there a way to tell efetch to download FASTA records such that record headers include the GI number? For example, a given header would look like this
>gi|2248537881|ref|NM_001407571.1| Homo sapiens BRCA1 DNA repair associated (BRCA1), transcript variant 6, mRNA
instead of like this
>NM_001407571.1 Homo sapiens BRCA1 DNA repair associated (BRCA1), transcript variant 6, mRNA

The command I'm using is efetch -db nuccore -input accNosRandom.txt -format fasta > seq.fna where accNosRandom.txt contains a list of accession numbers. It results in the non-GI number format.

[vkkodali]

GIs were phased out by NCBI a few years ago. While they still remain in the ASN1 records and can be fetched using efetch with the option -format gi they are not exposed in the FASTA files and it does not have an option to include the gi number in FASTA output.

[mapauley]

Thanks for letting me know.