To get an overview on which namespaces are declared in a (known or unknown) C# project or solution, you can simple run your favorite grep tool on your source directories:
grep -r "^namespace " * --include=*.cs --exclude-dir=*Test*
--exclude=*designer.cs > files-namespaces.txt
Here, the -r switch causes recursive search through all subdirectories, –include names the files to search, –exclude-dir and –exclude the directories and files to exclude from the search. The result is written to a file.
This will produce a list of all namespace declarations.
Using the uniq command of the cmd.net command line utilities we can find all unique namespaces:
grep -r "^namespace " * --include=*.cs --exclude-dir=*Test*
--exclude=*designer.cs -h | sort
| uniq > namespaces.txt
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