@echo off
cls
echo Protecting srcds from crashes...
echo If you want to close srcds and this script, close the srcds window and type Y depending on your language followed by Enter.
title Phonebooth MK1 Match Server
:srcds
echo (%time%) Using HldsUpdateTool to check for updates.
start /wait steamcmd +runscript tf2_ds.txt
echo (%time%) srcds started.
start /wait tf2\srcds.exe -console -game tf -autoupdate +sv_pure 1 +maxplayers 20 +tv_port 27020
echo (%time%) WARNING: srcds closed or crashed, restarting.
goto srcds

tf2_ds.txt contains
@ShutdownOnFailedCommand 1
@NoPromptForPassword 1
login anonymous
force_install_dir c:\steamcmd\tf2
app_update 232250 validate
quit