-d, --to-deb           Make debian packages. This is the default. -r, --to-rpm           Make rpm packages.       -t, --to-tgz           Make tgz packages.       --to-slp           Make slp packages.       -p, --to-pkg           Make Solaris pkg packages.       -i, --install           Automatically install each generated package, and remove the           package file after it has been installed.

使用方法：

　　

就可以把deb包转化为rpm包  同样-d也可以转化回来 参数请使用

man alien

自行查看