Bukkit

Full file support:

What you already have:
copy (d|dir|dire|directory) %string% to %string%
copy file %string% to %string%
create [new] file %string%
delete file %string%
get string %string% from %string%
get integer %string% from %string%
get boolean %string% from %string%
What you need:
files in %string%
number of files in %string%
folders in %string%
number of folders in %string%
get line of %string%
value of line %number% to %string% (Example: set value of line 10 to "Test")
remove line %number%
write new line at %number% with value %string%

Extra thing you need to files are full supported:
#this is not total needed just the top /\
%string% parsed as date
so you can save a data in a file and then get it to output

What about

if file %file% exists:

and

if folder %folder% exists: