cardos-tool man page

cardos-tool ā€” displays information about Card OS-based security tokens or format them


cardos-tool [Options]


The cardos-tool utility is used to display information about smart cards and similar security tokens based on Siemens Card/OS M4.


--card-driver name, -c name

Use the card driver specified by name. The default is to auto-detect the correct card driver.

--format, -f

Format the card or token.

--info, -i

Display information about the card or token.

--reader number, -r number

Specify the reader to use. By default, the first reader with a present card is used. If num is an ATR, the reader with a matching card will be chosen.

--verbose, -v

Causes cardos-tool to be more verbose. Specify this flag several times to enable debug output in the opensc library.

--wait, -w

Causes cardos-tool to wait for the token to be inserted into reader.


cardos-tool was written by Andreas Jellinghaus <>.


07/14/2018 opensc OpenSC Tools