How to make cygwin redirect in UNIX mode?

[Pan ruochen]

Hi All,

I do as the manual (http://cygwin.com/cygwin-ug-net/using-textbinary.html) says:
When redirecting, the Cygwin shells uses rules (a-e). For these shells
the relevant value of CYGWIN is that at the time the shell was
launched and not that at the time the program is executed. Non-Cygwin
shells always pipe and redirect with binary mode. With non-Cygwin
shells the commands  cat filename | program and  program < filename
are not equivalent when filename is on a text-mounted partition.

I have edited c:\cygwin\cygwin.bat as:
@echo off
set CYGWIN=binmode
C:
chdir C:\cygwin\bin
bash --login -i

After I relaunch cygwin and run:
echo abc > a.txt

The file a.txt is in DOS format, not in UNIX.
What's wrong then?

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