Hi Bob,
thanks for u r reply.
See i will explain u neatly.
I am using bash shell. When I tried to do this i getting this.I am getting this error.

[balamup2@cl-flor-dvvm026 ~]$ echo $SHELL
/bin/bash

[balamup2@cl-flor-dvvm026 ~]$ ls
test1.txt test3.txt testdir test.txt

[balamup2@cl-flor-dvvm026 ~]$ test -f test*.txt
-bash: test: too many arguments
--------------------------------------------------------------------------------------------
But my friend is using ksh shell. He is fine with that command . I will past this O/P also.

$ echo $SHELL
/usr/bin/ksh

$ ls
123.txt a1.txt abc.txt a.txt dead.letter nohup.out ww1.txt

$ test -f a*.txt
$ echo $?
0

Please take a deep look and resolve this problem