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**#REPLACE(** //oldfile, newfile// **)**

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| **#REPLACE** | Performs "intelligent" file replacement. |
| //oldfile// | A string constant, template symbol, or expression containing a DOS file specification. This may be a fully qualified DOS pathname. |
| //newfile// | A string constant, template symbol, or expression containing a DOS file specification. This may be a fully qualified DOS pathname. |

The **#REPLACE** statement performs a binary comparison between the contents of the //oldfile// and //newfile//. If the contents of the //oldfile// are different from the contents of the //newfile// (or the //oldfile// does not exist), then the //oldfile// is deleted and the //newfile// is copied to the //oldfile//. If the two files are identical, then no action is taken. If the //newfile// does not exist, #REPLACE is ignored and source generation continues.

**Example:**

**#FOR(%Module)**

**   #SET(%TempModuleFile,(%Module & '.$$$'))          #!Set temp module file**

**   #CREATE(%TempModuleFile)                          #!Create temp module file**

**   #GENERATE(%Module)                                #!Generate module header**

**   #FOR(%ModuleProcedure)                            #!For all procs in module**

**      #FIX(%Procedure,%ModuleProcedure)              #!Fix current procedure**

**      #GENERATE(%Procedure)                          #!Generate procedure code**

**   #ENDFOR                                           #!EndFor all procs in module**

**   #SET(%ModuleFile,(%Module & '.CLW'))              #!Set to existing module file**

**   ****#REPLACE****(%ModuleFile,%TempModuleFile)             #!Replace old with new (if changed)**

**#ENDFOR**