In my script I need to list the directory, where the generic name of the files will change, in my test case its set to TEST_*.mqsc. I wrote a small test script as below, but it just does not pip the listing to a file.
Any idea why?

dir='C:/cygwin/var/log/img/aut/'
file=TEST01_*.mqsc
ls $dir | grep "$file" > test.txt

When I run it in debug I get the following:

$ bash -x test.sh
+ dir=C:/cygwin/var/log/img/aut/
+ file='TEST01_*.mqsc'
+ ls C:/cygwin/var/log/img/aut/
+ grep TEST01_080924.mqsc TEST01_080925.mqsc TEST01_080926.mqsc TEST01_080927.mq
sc TEST01_080928.mqsc TEST01_080929.mqsc TEST01_080930.mqsc TEST01_081001.mqsc T
EST01_081002.mqsc TEST01_081003.mqsc TEST01_081004.mqsc TEST01_081005.mqsc TEST0
1_081006.mqsc TEST01_081007.mqsc TEST01_081008.mqsc TEST01_081009.mqsc TEST01_08
1010.mqsc
+ rc=1
+ echo 'Return Code is: 1'
Return Code is: 1