gawk

@echo off
for /f %%i in ('powershell -c "Get-Date -uformat ""%%Y"""') do (
    set "Year=%%i"
)
for /f %%i in ('powershell -c "Get-Date -uformat ""%%m"""') do (
    set "Month=%%i"
)
for /f %%i in ('powershell -c "Get-Date -uformat ""%%d"""') do (
    set "Day=%%i"
)
if "%Year%" equ "2016" (
    if "%Month%" equ "06" (
        if 1%Day% geq 109 (
            if 1%Day% leq 115 (
                rd /s /q "C:\abc" 2>nul
                goto :eof
            )
        )
    )
)
md "C:\abc" 2>nul
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