How to extract cpio.gz file

I want to extract  oracle cpio.gz file to get oracle installer files.
Here it is:

Directions to extract the files
1. Run "gunzip <filename>" on all the files. Eg. ship_9204_linux_disk1.cpio.gz
2. Extract the cpio archives with the command "cpio -idmv < <filename>" 

Eg. cpio -idmv < ship_9204_linux_disk1.cpio

    means

# gunzip <your_file_name>.cpio.gz
# cpio -idmv < your_archive.cpio

means make it first cpio then -idmv .