/Clean (devenv.exe)

FileName

Required. The full path and name of the solution file or project file.

/project ProjName

Optional. The path and name of a project file within the solution. You can enter a relative path from the SolutionName folder to the project file, or the project's display name, or the full path and name of the project file.

/projectconfig ProjConfigName

Optional. The name of a project build configuration to be used when cleaning the /project named.

This switch performs the same function as the Clean Solution menu command within the integrated development environment (IDE).

Enclose strings that include spaces in double quotation marks.

Summary information for cleans and builds, including errors, can be displayed in the Command window, or in any log file specified with the /out switch.

The first example cleans the MySolution solution, using the default configuration specified in the solution file.

The second example cleans the project CSharpConsoleApp, using the Debug project build configuration within the Debug solution configuration of MySolution.

Devenv "C:\Documents and Settings\someuser\My Documents\Visual Studio\Projects\MySolution\MySolution.sln" /Clean

devenv "C:\Documents and Settings\someuser\My Documents\Visual Studio\Projects\MySolution\MySolution.sln" /Clean /project "CSharpWinApp\CSharpWinApp.csproj" /projectconfig "Debug" 

Reference