This is the python way of calculating the date that is 14 days ago.

import datetime
(datetime.datetime.now() - datetime.timedelta(days = 14)).date()

And this is pandas way of getting the same results:

import pandas as pd
(pd.datetime.today() - pd.offsets.Day(14)).floor('D')

Here are 5 commands to run docker on ARM processors:

sudo apt-get update
sudo apt-get upgrade
curl -fsSL get.docker.com -o get-docker.sh && sh get-docker.sh
sudo usermod -aG docker $USER
sudo docker run --rm -it -p 80:80 jasonrandrews/php-example

A docker wrapper for the Cloudmapper application, used for visualizing AWS infrastructure.

git clone github.com
cd docker-cloudmapper
Edit .env file and add your AWS key, secret, region, and account name.
docker-compose build (go get a cup of coffee)
docker-compose up -d

Go to localhost:8000 and enjoy!

enable Weekly Email Notification from the Trusted Advisor.

1) Open the AWS Management Console.
2) Go to the Trusted Advisor service.
3) Select Preferences from the sub-navigation.
4) Enable weekly email notifications.

from functools import partialmethod
pd.DataFrame.head = partialmethod(pd.DataFrame.head, n=3)

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 {} \;