The dotnet-ildasm2 provides a command-line IL disassembler. Simply send the assembly path as a parameter and as a result you will get the IL contents of that assembly.
The project was created as a global CLI tool, therefore you can install with a single command:
dotnet tool install -g dotnet-ildasm2
Note that for the command above to work, you need .NET SDK 6 or above installed in your machine.
ildasm <ASSEMBLY_PATH>
ildasm <ASSEMBLY_PATH> <-o|--output>
ildasm <ASSEMBLY_PATH> <-i|--item>
ildasm <-h|--help>
-i
Filter results by method and/or classes to be disassembled.
-o
Define the output file to be created with the assembly's IL.
Output IL to the command line:
ildasm myassembly.dll
Filter results by method and/or classes to be disassembled, showing the result in the command line:
ildasm myassembly.dll -i ClassName
ildasm myassembly.dll -i ::MethodName
ildasm myassembly.dll -i ClassName::MethodName
Define the file to be created with the output:
ildasm myassembly.dll -o disassembledAssembly.il