# System Parameters

'FN' | Filename As Is: No Case Conversion

## Description

On - Passes filenames to the OS with no case conversion.
Off - Case conversion is governed by the current setting of either 'FL' (forces lowercase) or 'FU' (forces uppercase).

## Default

On (unless 'FL' or 'FU' are On)

The 'FN' setting is not displayed in the list returned using PRINT PRM.

## See Also

'FL' Filename in Lowercase
'FU' Filename in Uppercase
FFN( ) Function (for a UNIX example using these parameters for case insensitive searches)