Since you have not mentioned the version, I would assume you are in Version 8 ...
db2 "select * from table( SNAPSHOT_TBS_CFG ('sample',-1)) as test"
and
db2 "select * from table( SNAPSHOT_CONTAINER ('sample',-1)) as test"
If you are still on Version 7 (or lower) ,
then a script in
http://www.db2click.com/scripts.htm
should help
Cheers
Sathyaram