Let's say that there is one huge
db.sql.gz of size 100GB available
https://example.com/db/backups/db.sql.gz and the server supports range requests.
So instead of downloading the entire file, I downloaded
y bytes(let's say 1024bytes) with an offset of
x bytes(let's say 1000bytes) like the following.
curl -r 1000-2024 https://example.com/db/backups/db.sql.gz
With the above command I was able to download the partial content of the gzipped file, now my question is how can I read that partial content?
gunzip -c db.sql.gz | dd ibs=1024 skip=0 count=1 > o.sql but this gives an error
gzip: dbrange.sql.gz: not in gzip format
The error is acceptable since I guess at the top of the file may be there are header blocks which describes encoding.
I noticed that if I'm downloading the file without an offset, I'm able to read the file using
gunzip and piping.
curl -r 0-2024 https://example.com/db/backups/db.sql.gz