Windows Command Line – How to Create an Empty File

I think this is what you're looking for:
https://stackoverflow.com/questions/346107/creating-a-shortcut-for-a-exe-from-a-batch-file

Pressing Ctrl+U will empty the current line.

It's the default kill character on most terminals and it erases the current line (from the cursor to its beginning). The stty command can be used to get or set its value.

[dave@hal9000 ~]$ stty -a
speed 38400 baud; rows 23; columns 75; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = M-^?;
eol2 = M-^?; swtch = M-^?; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
...
[dave@hal9000 ~]$ stty kill ^T # Set it to Ctrl-T

Be the way, werase stands for word erase, so Ctrl+W erases the word on the left of the cursor.