diff --git a/algs4/src/java/chapter-01-files b/algs4/src/java/chapter-01-files
deleted file mode 100644
index f97db4b..0000000
--- a/algs4/src/java/chapter-01-files
+++ /dev/null
@@ -1,28 +0,0 @@
-Average
-BinarySearch
-Cat
-Counter
-RandomSeq
-Shuffle
-StaticSETofInts
-Whitelist
-Vector
-Date
-Transaction
-Point2D
-Interval1D
-Interval2D
-ResizingArrayStack
-Stack
-ResizingArrayQueue
-Queue
-Bag
-Stopwatch
-ThreeSum
-ThreeSumFast
-DoublingTest
-DoublingRatio
-QuickFindUF
-QuickUnionUF
-WeightedQuickUnionUF
-UF
diff --git a/algs4/src/java/download-all b/algs4/src/java/download-all
deleted file mode 100755
index 3123af6..0000000
--- a/algs4/src/java/download-all
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-set -e
-
-cd $(dirname $(readlink -f $0))
-
-set -x
-
-for n in $(cat chapter-01-files)
-do
-    curl -O "http://algs4.cs.princeton.edu/11model/${n}.java"
-    chmod 444 "${n}.java"
-done