# System Parameters

'FL' | Filename in Lowercase

## Description

When the 'FL' parameter is enabled (On), the system will convert all filenames to lowercase before passing them to the operating system file system. This conversion does not occur on filenames that specify full pathnames to files.

#### Note:
When the 'FL' parameter is set to On, 'FU' is turned off automatically. In addition, the 'FN' system parameter may override the 'FL' setting.

## Default

Off - Filenames are passed in original case.

## See Also

'FN' Filename As Is: No Case Conversion
'FU' Filename in Uppercase
FFN( ) Find File Number (for a UNIX example using these parameters for case insensitive searches)