FileExist Function

Format

b = fileexist(file_name);

Description

The fileexist function determines whether a file exists. file_name is either a string expression giving a file name or is a file handler declared in a File statement in PROC GLOBAL.

You can use the wildcard characters "*" and "?" in the file_name. In that case the function will determine whether any file matching the specification exists.

Prior to CSPro 6.2, the function determined whether either a file or a directory existed. The direxist function must now be used to check for the existence of a directory.

Return Value

The function returns a logical value of 1 (true) if the file exists and 0 (false) otherwise.

Example

if fileexist(householdPffFilename) then
filedelete(householdPffFilename);
endif;