Shell script used for updating hadoop (trunk) in my development VM

updateHadoop.sh

#!/bin/sh
if [ $# -ne 1 ]; then
  echo "Usage ./updateHadoop.sh <NAME>"
  echo "New hadoop package will be installed into /usr/hadoop/NAME"
  echo "We recommend to use <YYYYMMDD-ISSUEID> for NAME."
  exit 1
fi

# New hadoop package is installed to /usr/local/NAME
NAME=$1
VERSION=3.0.0-alpha1-SNAPSHOT
TARBALL=hadoop-${VERSION}.tar.gz

if [ ! -f $TARBALL ]; then
  echo "${TARBALL} not found."
  exit 1
fi

tar xf $TARBALL
/bin/mv hadoop-${VERSION} /usr/local/$NAME

# copy the previous configuration
/bin/cp -f /etc/hadoop/conf/*.xml /usr/local/$NAME/etc/hadoop/

/bin/rm /usr/local/hadoop
ln -s /usr/local/$NAME /usr/local/hadoop

/bin/rm $TARBALL

Updated from 3.0.0-SNAPSHOT to 3.0.0-alpha1-SNAPSHOT