Windows Batch Scripting : Regular Expression Or Statement - regex

Question

#echo off
set out=%~dp0\FileName.txt
(for /r %~dp0 %%F in ((*System1*.txt*) | (*System2*.txt*)) do (if %%~zF GEQ 1 echo %%F)) > %out%
exit /b
I am trying with the above batch file to look at the directory the batch file is in for files containing a certain string and there size is over 0KB.
The problem I am having is with the OR statement.

Answer 1

The Batch file below fulfills your specifications:
#echo off
set out=%~dp0\FileName.txt
rem "am trying with this batch file to look at the directory the batch file is in"
(for /r "%~dp0" %%F in (*System1*.txt* *System2*.txt*) do (
rem "I want all files greater than 0kb to be written out"
if %%~zF GEQ 1 (
rem "Is there a way to just exclude this Filename.txt file?"
if "%%~nxF" neq "Filename.txt" echo %%F
)
)) > "%out%"
exit /b
However, you must note the following points:
The path to the batch file (%~dp0) should be enclosed in quotes in case it may include spaces.
If there are no other files with System, just the desired System1 or System2, then (*System*.txt*) wild-card would be enough.
Usually all files have a size greater than zero bytes. If your system does not regularly create empty files, the related if command is not necessary.
The output filename Filename.txt will never match the given *System*.txt* wild-card, so the last if command is not necessary.

Answer 2

Without further details this is a possible solution using your code as a base:
#echo off
set "out=%~dp0\FileName.txt"
(for /r "%~dp0" %%F in (*System*.txt*) do if %%~zF GTR 0 echo %%F)>"%out%"
exit /b

Answer 3

#echo off
set "out=%~dp0FileName.txt"
(for /r "%~dp0" %%F in (*System1*.txt* *System2*.txt*) do if %%~zF GEQ 1 echo %%F) > %out%
exit /b
for command allow multiple sets of files in the in clause, so, just include them.