GitIgnore Unreal&Unity

My proper Gitignore for

Unity 

Temp/
Obj/
UnityGenerated/
Library/
[Bb]uild/
[Bb]uilds/
Assets/AssetStoreTools*

# Visual Studio cache directory
.vs/

# Autogenerated VS/MD/Consulo solution and project files
ExportedObj/
.consulo/
*.csproj
*.unityproj
*.sln
*.suo
*.tmp
*.user
*.userprefs
*.pidb
*.booproj
*.svd
*.pdb
*.opendb
*.VC.db

# Unity3D generated meta files
*.pidb.meta
*.pdb.meta

# Unity3D Generated File On Crash Reports
sysinfo.txt

# Builds
*.apk
*.unitypackage

Unreal

DebugGame*
*Shipping*
**/Intermediate
**/Saved
/.vs
**/Build
**/Builds
*.sln
*.pdb
**.db
Config/SteamVRBindings
Config/Steamvr_ue_editor_app.json

#build ignore
##Windows
*.exe
*.exp
Binaries/**/*.lib
*.target

##Android
Binaries/Android/**

Tools

Remove files that are listed in the .gitignore but still on the repository

Source code

git rm --cached `git ls-files -i --exclude-from=.gitignore`
// Windows
git ls-files -i -z --exclude-from=.gitignore | xargs -0 git rm --cached
// Easier way
git rm -r --cached .
git add .
git commit -m "Removing all files in .gitignore"

Reset Working copy to repository state

Source code

git clean -xfd
git submodule foreach --recursive git clean -xfd
git reset --hard
git submodule foreach --recursive git reset --hard
git submodule update --init --recursive

Source code

// fetch submodule after a clone
git submodule update --init --recursive