[Fraggor]

Here's a snippet of my srcds_launch.bat, please read the comments and feel free to point out any incorrect information

Spoiler

@echo off

set "CURRENT_DIR=%~dp0"

set "INIT=-console -steam -usercon -game left4dead2"
set "DEBUG=-debug -condebug -gamestatsloggingtofile"

start "" /HIGH .\srcds.exe %INIT% %DEBUG% -insecure -ip %IP% -port %PORT% +sv_lan 0 -maxplayers 32 +map %MAP% %MOD%

:: There's an issue when using "-conclearlog" on windows
:: in the srcds's console output will print the following message:
::   Unable to remove <drive>:\path\to\left 4 dead 2 dedicated server\update\console.log!
:: and a log file will be present in 'left4dead2\console.log'

:: if we don't launch with "-conclearlog" the server will append it's output into "console.log"
:: which is probably undesirable behavior, as it will eats up storage space overtime

:: my work arround is :CLEARLOG function

Goto CLEARLOG

:CLEARLOG
cd /D "%CURRENT_DIR%left4dead2"
if exist "console.log" (
  echo Clearing out console.log
  type nul > "console.log"
)