chromium自动升级脚本

#!/bin/bash
cd /home/riverbird/download/
rm LATEST
rm chrome-linux.zip
wget http://build.chromium.org/buildbot/snapshots/chromium-rel-linux/LATEST -O LATEST
last=`cat LATEST`
url="http://build.chromium.org/buildbot/snapshots/chromium-rel-linux/${last}/chrome-linux.zip"
echo [$url]
aria2c -s 4 "${url}"
cd /home/riverbird/download/
unzip -o chrome-linux.zip
echo "========OK========="