Find scene and prefab references to scripts in Unity.

findrefs.sh

#!/usr/bin/env bash
#
# Run from the project root. Pass the full name of a script, or substring of the names of the scripts to check.
#
# Example
# $) ./findrefs.sh BackgroundCamera
# Finding matches for script Assets/Scripts/Camera/BackgroundCamera.cs.meta ...
# Assets/Prefabs/CaveBGCamera.prefab:  m_Script: {fileID: 11500000, guid: 7e63acfee367c4314852b87218149bd3, type: 3}
# Assets/Prefabs/ForestBGCamera.prefab:  m_Script: {fileID: 11500000, guid: 7e63acfee367c4314852b87218149bd3, type: 3}
#
# $) 

find_refs() {
    echo "Finding matches for script $1 ..."
    local guid="$(grep guid "$line" | sed 's/^.* //')"
    grep -R "$guid" Assets | grep -v "$1"
    echo ""
}

find Assets -iname "*$1*.cs.meta" | while read line; do
    find_refs "$line"
done