@echo off
setlocal EnableDelayedExpansion
cd /d "%~dp0"
for /f "delims=" %%A in ('dir /a-d /b *-*') do (
  set fn=%%~nxA
  ren "%%~fA" "!fn:*-=!"
)
endlocal
pause
exit /b
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@echo off
cd /d "%~dp0"
for /f "tokens=1* delims=-" %%A in ('dir /a-d /b *-*') do (
  for /f "tokens=*" %%C in ("%%B") do (
    ren "%%A-%%B" "%%C"
  )
)
pause
exit /b
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@echo off
setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /b /a-d *-*') do (
set "str=%%i"
set "str=!str:* - =!"
set "str=!str:*-=!"
ren "%%i" "!str!"
)
pause
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@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /a-d /b *-*') do (
       set fn=%%~nxi
       for /f " tokens=*" %%j in ("!fn:*-=!") do ren "%%~fi" "%%~nxj"
)
pause
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