There is no native way of doing this.
The Redis command documentation contains no native commands for getting the key and value of multiple keys.
The most native way of doing this would be to load a lua script into your redis using the SCRIPT LOAD command or the EVAL command.
Bash Haxx solution
A workaround would be to use some bash magic, like this:
echo 'keys YOURKEY*' | redis-cli | sed 's/^/get /' | redis-cli
This will output the data from all the keys which begin with YOURKEY
Note that the keys command is a blocking operation and should be used with care.