Проверка наличия файла по маске

@echo off
 
for %%i in ("345*_*.txt") do set FileName="%%i"
if exist %FileName% (echo %FileName:~1,-5%)
 
echo Файл отсутствует
 
pause

@echo off
 
for %%i in ("345*_*.txt") do set FileName="%%i"
if exist %FileName% (
call :exit2
) else (
call :exit1
)
 
:exit1
echo Файл отсутствует
pause
 
:exit2
echo %FileName:~1,-5%
pause

@echo off
for /f "delims=" %%i in ('2^>nul dir /a-d/b "345*_*.txt"^|^| echo #') do set "FileName=%%i"& echo %%i|>nul find "#" && (call :#2 "Файл отсутствует") || (call :#1 "%%FileName:~1,-5%%")
pause& exit
 
:#1
 echo %~1
exit /b
 
:#2
 echo %~1
exit /b

@echo off
for /f "delims=" %%i in ('2^>nul dir /a-d/b "345*_*.txt"^|^| echo :') do set "FileName=%%i"& echo %%i|>nul find ":" && (call :#2 "Файл отсутствует") || (call :#1 "%%FileName:~1,-5%%")
pause& exit
 
:#1
 echo %~1
exit /b
 
:#2
 echo %~1
exit /b

@echo off
 
for /f "delims=" %%i in ('2^>nul dir /a-d/b "345*_*.txt"^|^| echo :') do set "FileName=%%i"&^
echo %%i|>nul find ":" && (call :#2) || (call :#1)
pause& exit
 
:#1
 echo %FileName:~1,-5%
exit /b
 
:#2
 echo Файл отсутствует
exit /b

@echo off
for /f "delims=" %%i in ('dir /a-d/b "345*_*.txt"') do set "FileName=%%i"& call :#
pause& exit
 
:#
 echo %FileName:~1,-5%
exit /b