diff --git a/.bashrc b/.bashrc
index 920bbbf..6e1c32e 100644
--- a/.bashrc
+++ b/.bashrc
@@ -1,5 +1,6 @@
 alias vv="g++ --std=c++11 -O2 -Wall"
 alias ls='ls -Ga'
+alias grep='grep -E --color=auto'
 alias mkdir='mkdir -p'
 export PATH=/opt/local/bin:/opt/local/sbin:$PATH
 
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..6216c8b
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1,2 @@
+registry=http://registry.npmjs.org/
+strict-ssl=false
diff --git a/.zshrc b/.zshrc
index 64a3139..e5157eb 100644
--- a/.zshrc
+++ b/.zshrc
@@ -30,6 +30,7 @@ setopt extended_glob
 alias vv="g++ --std=c++11 -O2 -Wall"
 alias vi="vim"
 alias ls='ls -Ga'
+alias grep='grep -E --color=auto'
 alias mkdir='mkdir -p'
 alias sudo='sudo '
 alias rot13='tr A-Za-z N-ZA-Mn-za-m'
diff --git a/setup.sh b/setup.sh
deleted file mode 100755
index 102724d..0000000
--- a/setup.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/bash
-
-cd dirname $0
-ABSDIR=`pwd`
-
-DOT_FILES=(.bashrc .vimrc .zshrc)
-
-for file in ${DOT_FILES[@]}
-do
-    ln -s $ABSDIR/$file $HOME/$file
-done