Hi Keny,
Under linux environment, you should open terminal and use 'opensc-tool' commands to operate Smart Card.
for example:
# opensc-tool --atr
# opensc-tool --serial
# opensc-tool --reader 0 --name
...
for more detail on opensc-tool application, see it's help, please!
Have a nice day!
Best regards,
Weidong Sun