-# Obtain the location of the bash script to figure out where the root of the repo is.
-__ProjectRoot="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+usage()
+{
+ echo "Usage: clean [-b] [-p] [-c] [-all]"
+ echo "Repository cleaning script."
+ echo " -b Delete the binary output directory."
+ echo " -p Delete the repo-local NuGet package directory."
+ echo " -c Delete the user-local NuGet package caches."
+ echo " -all Cleans repository and restores it to pristine state."
+ echo
+ echo "If no option is specified, then \"clean.sh -b\" is implied."
+ exit 1
+}