diff --git a/nvm.sh b/nvm.sh
index aa46581..5389b2d 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -726,17 +726,15 @@ nvm() {
         nvm help
         return 127
       fi
-      VERSION=`nvm_version $2`
+      VERSION=$(nvm_version "$2")
       local ROOT
-      ROOT=`(nvm use $VERSION && npm -g root)`
-      local ROOTDEPTH
-      ROOTDEPTH=$((`echo $ROOT | sed 's/[^\/]//g'|wc -m` -1))
+      ROOT=$(nvm use $VERSION && npm -g root)
 
       # declare local INSTALLS first, otherwise it doesn't work in zsh
       local INSTALLS
-      INSTALLS=`nvm use $VERSION > /dev/null && npm -g -p ll | \grep "$ROOT\/[^/]\+$" | cut -d '/' -f $(($ROOTDEPTH + 2)) | cut -d ":" -f 2 | \grep -v npm | tr "\n" " "`
+      INSTALLS=$(nvm use $VERSION > /dev/null && npm list --global --parseable --depth=0 2> /dev/null | tail -n +2 | grep -o -e '/[^/]*$' | cut -c 2- | xargs)
 
-      npm install -g ${INSTALLS[@]}
+      npm install -g --quiet $INSTALLS
     ;;
     "clear-cache" )
       rm -f $NVM_DIR/v* 2>/dev/null
diff --git a/test/slow/nvm copy-packages/setup_dir b/test/slow/nvm copy-packages/setup_dir
new file mode 100755
index 0000000..c550f69
--- /dev/null
+++ b/test/slow/nvm copy-packages/setup_dir	
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm install 0.10.28
+nvm install 0.10.29
+
+if [ -f ".nvmrc" ]; then
+  mv .nvmrc .nvmrc.bak
+fi
+
diff --git a/test/slow/nvm copy-packages/should work as expected b/test/slow/nvm copy-packages/should work as expected
new file mode 100755
index 0000000..21f10df
--- /dev/null
+++ b/test/slow/nvm copy-packages/should work as expected	
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+die () { echo "$@" ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm use 0.10.28
+
+EXPECTED_PACKAGES="autoprefixer bower david eslint grunt-cli grunth-cli http-server jshint marked node-gyp npm recursive-blame uglify-js yo"
+
+npm install -g --quiet $EXPECTED_PACKAGES
+
+nvm use 0.10.29
+ORIGINAL_PACKAGES=$(npm list --global --parseable --depth=0 2> /dev/null | tail -n +2 | grep -o -e '/[^/]*$' | cut -c 2- | sort | uniq | xargs)
+
+nvm copy-packages 0.10.28
+FINAL_PACKAGES=$(npm list --global --parseable --depth=0 2> /dev/null | tail -n +2 | grep -o -e '/[^/]*$' | cut -c 2- | sort | uniq | xargs)
+
+[ "$FINAL_PACKAGES" = "$EXPECTED_PACKAGES" ] || die "final packages ($FINAL_PACKAGES) did not match expected packages ($EXPECTED_PACKAGES)"
+[ "$ORIGINAL_PACKAGES" != "$FINAL_PACKAGES" ] || die "original packages matched final packages ($ORIGINAL_PACKAGES)"
+
diff --git a/test/slow/nvm copy-packages/teardown_dir b/test/slow/nvm copy-packages/teardown_dir
new file mode 100755
index 0000000..1282eb4
--- /dev/null
+++ b/test/slow/nvm copy-packages/teardown_dir	
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm uninstall v0.10.28
+nvm uninstall v0.10.29
+
+rm -f .nvmrc
+
+if [ -f ".nvmrc.bak" ]; then
+  mv .nvmrc.bak .nvmrc
+fi
+