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update script for Linux

I took the steps at A new, community-hosted Unreal Engine Wiki - Announcements and Releases - Unreal Engine Forums needed to update and recompile an already-installed Unreal Engine and put it in a handy bash script.


UNREAL_DIR="/opt/UnrealEngine"  # must be owned by you (don't use sudo)

set -e

cd "$UNREAL_DIR"

git pull https://github.com/EpicGames/UnrealEngine.git release  # must have linked your github account to your epic account.

./Setup.sh
./GenerateProjectFiles.sh

if  "$1" == "-clean" ] ;then
make CrashReportClient-Linux-Shipping \
	ShaderCompileWorker \
	UnrealPak \
	UnrealLightmass \
	UnrealFrontend \
	UE4Editor \
	ARGS=-clean
fi
make

I also made a [FONT=Courier New].desktop file for [FONT=Courier New]/usr/share/applications (or [FONT=Courier New]$HOME/.local/share/applications)


[Desktop Entry]
Name=UE4Editor
Exec=/opt/UnrealEngine/Engine/Binaries/Linux/UE4Editor
Type=Application
Icon=/opt/UnrealEngine/Engine/Source/Programs/UnrealVS/Resources/Icon.png
Path=/opt/UnrealEngine/Engine/Binaries/Linux