The eidenv utility is used for accessing data from electronic identity cards (like national eID cards) which might not be present in PKCS#15 objects but available in custom files on the card. The data can be printed on screen or used by other programs via environment variables.
--exec prog, -x progExecutes the given program with data in environment variables.
--help, -hPrint help message on screen.
--print, -pPrints all data fields from the card, like validity period, document number etc.
--reader num, -r numUse the given reader. The default is the first reader with a card.
--stats, -tPrints key usage statistics (only for Estonian ID card).
--version, -vPrints the version of the utility and exits.
--wait, -wWait for a card to be inserted
eidenv utility was written by Stef Hoeben and Martin Paljak email@example.com.