File and Directory functions
ChDir - Change the current working directory
Cwd - Obtain the current working directory
FClose - Close a previously opened file handle
FCloseAll - Close all currently open file handles
FEOF - Return a non zero value when End Of File is reached
FGetc - Return a single byte from a file
FGets - Return a string from a file
FileExists - Return a non-zero value if a named file exists
FileLen - Determine the length of a named file
FindFirst - Find the first matching file for a given filespec
FindNext - Find the next matching file, called after FINDFIRST
FOpen - Open a named file on an index
FPutc - Put a single character out to a file
FPuts - Put a string out to a file
FSeek - Seek to a specific position on a file
FTell - Return the position in a file
Kill - Delete a file
MkDir - Create a directory
Name - Rename a file
RmDir - Remove a directory