Set default shell, add lsb-release

.devcontainer/Dockerfile

@@ -13,8 +13,8 @@ ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update \
     && apt-get -y install --no-install-recommends apt-utils 2>&1
 
-# Verify git, needed tools installed
-RUN apt-get -y install git procps curl
+# Install git, process tools, lsb-release (common in install instructions for CLIs)
+RUN apt-get -y install git procps lsb-release
 
 # Clean up
 RUN apt-get autoremove -y \
@@ -22,4 +22,5 @@ RUN apt-get autoremove -y \
     && rm -rf /var/lib/apt/lists/*
 ENV DEBIAN_FRONTEND=dialog
 
-	
+# Set the default shell to bash rather than sh
+ENV SHELL /bin/bash