How to record your terminal session and export it as animated GIF
In this article i will show you how you can record your terminal output and export it as an animated GIF, why to do that? there are…
Konstantinos Patronas
How to grep patterns read from a file
grep is an awesome tool that allows you to search for strings, nunbers and patterns of them, its usage can be quite complicated since it…
How to append or prepend text in specific columns with awk
Assume the following scenario, you have a csv file with the following content and you need to do append / prepend text in specific columns…
Linux: How to create a ping report with a simple script
Recently i had the following request, there was a need for a solution that would read all entries in /etc/hosts and ping each host and…
How to make smaller Docker images with upx and multistage builds
In a previous article of me i had give an example on how to use upx in order to compress executables but still be runnable, you can find…
How to make smaller executables with upx
UPX (Ultimate Packer for eXecutables) is a popular open-source executable packer that compresses and reduces the size of executable files…
Bash: How to manage crontabs remotely
Working with crontabs in remote servers usually takes place with the following procedure, Assuming that you follow bad practices like me…
Python: How to interpolate in Pandas
Having gaps in measurements is very usual, this might happen due to many reasons, like lack of data, mistakes in data acquisition, loosing…
Someone hide a jpg file without extension in your system! how you can find it?
Assume the following scenario! a hacker placed jpg files with company secrets in a server in order to retrieve them latter, jpg files have…
Linux: Find duplicate files easy!
One very common task (especially when you go out of disk space) is to find duplicate and compress them delete them etc.. in this article i…