The windows utility of dumpbin can be used for digging into binary files for .NET exe/dll assemblies, as is explained in this site.
dumpbin /clrheader lib.dll
Dump of file lib.dll File Type: DLL clr Header: 48 cb 2.00 runtime version 210C [ 374] RVA [size] of MetaData Directory 9 flags 0 entry point token 0 [ 0] RVA [size] of Resources Directory 2050 [ 80] RVA [size] of StrongNameSignature Directory 0 [ 0] RVA [size] of CodeManagerTable Directory 0 [ 0] RVA [size] of VTableFixups Directory 0 [ 0] RVA [size] of ExportAddressTableJumps Directory
What would be the equivalent to this tool with mono?