# -recurse (C# Compiler Options)

The -recurse option enables you to compile source code files in all child directories of either the specified directory (dir) or of the project directory.

## Syntax

-recurse:[dir\]file


## Arguments

dir (optional)
The directory in which you want the search to begin. If this is not specified, the search begins in the project directory.

file
The file(s) to search for. Wildcard characters are allowed.

## Remarks

The -recurse option lets you compile source code files in all child directories of either the specified directory (dir) or of the project directory.

You can use wildcards in a file name to compile all matching files in the project directory without using -recurse.

This compiler option is unavailable in Visual Studio and cannot be changed programmatically.

## Example

Compiles all C# files in the current directory:

csc *.cs


Compiles all of the C# files in the dir1\dir2 directory and any directories below it and generates dir2.dll:

csc -target:library -out:dir2.dll -recurse:dir1\dir2\*.cs