Checking for Existence of a File in Batch Scripts

Sometimes it is necessary to check whether a file exists in a certain folder. Batch scripting provides a programmer with a really nice construction called 'If Exist'. It's pretty useful when you want to check for existence of a given file, for example, 'autoexec.bat'. To check for it, you should write the following code:
If Exist autoexec.bat Echo Autoexec.bat exists!
But if you try to check for existence of any files in the way described above, you'll be surprised. Written '*.*', you'll be notified about existing files anyway, even when there are no files in the given folder. So instead of using '*.*' in 'if exist', it's better to look at the following code:
@Echo Off
For %%a In (1\*.*) Do Call :File_Ex %%a
If Defined FileExist Echo Exist
Goto :EOF
:File_Ex
Set FileExist=Yes
Goto :EOF
This code will give you proper answer about files in the specified folder, and you can include it into your own batch scripts. Hope it'll be useful for you.