install java and monitor repository

install_java_and_monitor_repo.sh

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"
sudo apt-get install unzip
unzip awscli-bundle.zip
sudo ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws

aws configure
#YOU have to add them params

aws s3api get-object --bucket tesztjarhw --key testhellowordldserver.jar test.jar

perl -MFile::stat -e "print scalar localtime stat('test.jar')->mtime" > last_change.txt


last modified
http://docs.aws.amazon.com/cli/latest/reference/s3api/get-object.html
--if-modified-since (timestamp) Return the object only if it has been modified since the specified time, otherwise return a 304 (not modified).
és ha ez nem 304 akk a leszedettet futtassa a régit meg előtte állítsa le

aws s3api get-object --bucket tesztjarhw --key testhellowordldserver.jar --if-modified-since "Sat, 05 Nov 2015 13:13:05 GMT" test.jar

#!/bin/sh

folder_to_download_file_to="/home/ubuntu/bucket/"
file_to_download="test.jar"

if [ -f $folder_to_download_file_to$file_to_download ]

then
echo "found file"
last_mod=$(perl -MFile::stat -e "print scalar localtime stat('test.jar')->mtime")
echo "file last modified: "$last_mod

    out_of_download=$(aws s3api get-object --bucket tesztjarhw --key testhellowordldserver.jar --if-modified-since "$last_mod" test.jar)
    echo $out_of_download
    echo -e $out_of_download > $file_to_download".data"

else
echo "didnt find file, will download it"
out_of_download=$(aws s3api get-object --bucket tesztjarhw --key testhellowordldserver.jar test.jar)
echo $out_of_download
echo $out_of_download > $file_to_download".data"
fi