I have an awk command line developed in unix and I have to pass it to windows. I have installed the gawk tool for windows, I have configured my environment variable and finally I have converted the shell to batch but when I run the .bat it generates an empty file.

this is my code: file.bat

echo off
set "fecha=%1"
set "inputpath=%2"
set "unique=.uq"
set file=FICUO