apt-get update && apt-get upgrade
mkdir -p /usr/share/man/man1
apt-get install default-jdk
apt install openjdk-11-jdk

1. Open the AWS SNS Management Console
2. Create and select a SNS topic

3. Click on Actions > Subscribe to Topic

4. Choose HTTPS as the protocol and set the endpint to:
   api.marbot.io

5. Configure your CloudWatch Alarms to send notifications to the SNS topic.

lsblk prints all block devices in a tree-like format.

lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda 202:0 0 8G 0 disk
└─xvda1 202:1 0 8G 0 part /
xvdf 202:80 0 90G 0 disk

If file command on the disk identifier "xvdf" shows simply "data", then there is no file system on the device and you need to create one.

file -s /dev/xvdf
/dev/xvdf: data

The total file size of the Food-5K dataset is about 1.16 GB. Here are steps to download food 11 dataset.

mmspg.epfl.ch

Use these commands at linux prompt:

ftp
open tremplin.epfl.ch
FoodImage@grebvm2.epfl.ch
Cahc1moo
get Food-11.zip

Cron entry to remove all files in /home/ folder that starts with 'bk_all_dbProdSlave' and not created in the last 2 days.

59 22 find /home/ -name bkall_dbProdSlave\ -mtime +2 -exec rm -f {} \;

Similar as above to remove compressed files:

find /home -type f ( -name ".sql.gz" -o -name ".tar.gz" -mtime +10 ) -exec rm -rf {} \;

List of important Types in Amazon Cloud Formation tool:

IAM (User, Group, Policy, AccessKey, Role)
Athena (NamedQuery)
Route53 (RecordSetGroup)
EC2 (SecurityGroup::Id, KeyPair::KeyName, SpotFleet)
Lambda (Function, Permission)
Events (Rule)
ApiGateway (RestApi, Method, Deployment)
Logs (LogGroup)

Standard codes used for classification:
1 SC
2 OBC
3 SBC
4 VJNT
5 ST
6 OPEN
7 Orphan

Here are 8 important concepts of Shell scripting that everyone should know.

1) Exit Code Status $?
2) here_doc
3) if_else

if [[ $mystatus = 'No' ]];then
echo "slave down"
else
echo "slave ok"
fi

4) For loop

for i in ls
do
cp $path$i $new_path
done

5) Positional Parameters $1, $2, $#, $@

6) Variables

7) Functions
stop()
(
for socket in {2..9}
do
mysqladmin shutdown $socket
done
)

8) Globbing - t?est [ab] [a-c] [^ab] {b,c,test*}

This seems to be a useful tool to convert mysql or oracle schema to redshift. select queries can also be migrated easily using...

www.sqlines.com

In order to install packetbeat, you may need to change the windows security setting.

C:\packetbeat> Set-ExecutionPolicy

Supply values for the following parameters:
ExecutionPolicy: unrestricted

Now you can install packetbeat using...
C:\packetbeat> .\install-service-packetbeat.ps1