im using xp pro, try this i didnt know you could do this till a minute ago while i was messing around
2^> FILENAME FIRSTLINEOFTEXT
then type type filename
and you can clear the file, by typing
1^> FILENAME Meaninglesstext
it is also possible to call on a batch file like this..
by default if you type i^> it shouldnt do anything
so if you made a .cmd file called id.cmd , that echoed %1 %2 %3 %4
you could instead type i^> 1 2 3 4 if you switch the folder you have id.cmd in