pssh tricks to accept a group of hosts as a pattern and execute a local script remotely

pssh is a tool that allows to run commands in parallel, I love this tool since it is an alternative to Ansible for ad-hoc commands where…

Linux: xargs with multiple parameters

xargs is an awesome command, that can be used to pass input from stdin as parameters to other commands, also xargs can do other tricks like…

How send data using ping (or how ping can turn evil!)

We all know ping, its very useful tool that allows us to verify connectivity between hosts and troubleshoot issues like network latency and…

Python: How to create a plots and subplots

Python is widely used in data science with libraries as pandas and numpy, to plot data can used various libraries but the most commonly…

Ansible how to build an inventory the right way

Ansible is a well known tool which allows you to perform tasks on remote servers, building your hosts inventory the right is very important…

Ansible configuration files how to use and troubleshoot

Ansible can use multiple files and environment variables to configure its behavior, in this article we will see how we can use them and how…

aws-cli: Manage Users, Groups and Permissions

aws-cli is a command line tool that allows us with ease to manage service s and resources on aws, in this article we are going to see some…

Flask: initialize your database with a command line argument!

One common task when deploying applications is to create the database and tables before first run, there are many ways to do this but an…

Python: Use pylint to make better code!

pylint is a Python linter which checks your code for readability and consistency! its an awesome tool that can enhance your code! lets see…

Linux: A cool tar and curl one-liner with many capabilities

I had the following requirement! i needed to compress all files in a directory and then transfer them over scp to a host, plus that i…