update

bin/copy.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+src=$(realpath "$1")
+dest=$(realpath "$2")
+
+pushd "$src" >/dev/null
+
+	dirs=$(find . -type d)
+
+	echo "$dirs" | while read d
+	do
+		mkdir -p -v "$dest/$d"
+	done
+
+	echo "$dirs" | while read d
+	do
+		files=$(find "$d" -type f)
+
+		echo "$files" | while read f
+		do
+			if [ ! -f "$dest/$f" ]
+			then
+				cp -v "$f" "$dest/$f"
+			elif [ "$f" -nt "$dest/$f" ]
+			then
+				cmp -s "$f" "$dest/$f"		\
+				||							\
+					cp -v "$f" "$dest/$f"
+			fi
+		done
+	done
+
+popd >/dev/null