Usgae
npmv eslint@14.2.0
npmv eslint
npmv @koa/router@14.2.3
#!/bin/bash
URL=`npm v $1 | grep .tarball | awk -F \.tarball:\ {' print $2 '}`
PACKAGE=`echo $URL | awk -F \/-\/ {' print $2 '}`
wget $URL &> /dev/null
tar -zxf $PACKAGE package/package.json
cat package/package.json
rm -rf cat package/
rm -rf $PACKAGE