getting error while doing cat command "Ambiguous output redirect."

Question

while executing

cat test.txt | java myfile > test1.txt 2> test2.txt

I am getting error "Ambiguous output redirect."

my java file contains System.out and System.err .

I am in Unix csh environment.

Answer 1

got it in unix tcsh env i can run as follows :

(cat test.txt | java myfile > test1.txt) >& test2.txt