gyb
Locally back up Gmail messages using Gmail's API over HTTPS. tldr-pages
On several platforms
Several platforms
Estimate the number and the size of all emails on your Gmail account
gyb --email email@gmail.com --action estimateIdentifyBack up a Gmail account to a specific directory
gyb --email email@gmail.com --action backup --local-folder path/to/directoryIdentifyBack up only important or starred emails from a Gmail account to the default local folder
gyb --email email@gmail.com --search "is:important OR is:starred"IdentifyRestore from a local folder to a Gmail account
gyb --email email@gmail.com --action restore --local-folder path/to/directoryIdentify