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# put me in /etc/systemd/system/display-ip.service

[Unit]
Description=Display IP address on boot
After=multi-user.target
After=network-online.target

[Service]
Type=oneshot
ExecStart=/usr/bin/bash -c "echo `ifconfig | awk '/inet /{print $2}'` > /dev/tty1"

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C/C++ Development Workflow

Setup

Install nvim with coc.nvim and NERDTree

Add this to your .vimrc:

""" NERDTree
" Show NERDTree file manager

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Print
	scrot -s ~/Pictures/%d-%m-%y_%h-%m-%T_$wx$h_scrot.png -e 'xclip -selection clipboard -target image/png -i $f'

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#!/bin/bash
# /etc/cron.d/mysql_watch_online

# Test the database connection and restart on failure
mysql -e '\q'

if [ $? != 0 ]; then
	echo `systemctl status mysql` | mail -s "MySQL Databse experience issues | `hostname`" your@email.com
	systemctl restart mysql
fi

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FFMPEG cheatsheet

Convert video for twitter

Twitter only works with videos with AAC audio, YUV 4:2:0 pixel format and an aspect ratio between 1:3 and 3:1, according to their developer docs

ffmpeg -i input_video.mp4 -c:a aac -c:v libx264 -filter:v "format=yuv420p" output_video.mp4

Audio over a static image

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Index

User Configurations

• urxvt and nvim setup
• Gnome shell setup

Programming

• Workflow

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EFI Stub

Sometimes GRUB refuses to behave. In those cases, unless you are dual booting, you can make an EFI Stub to boot directly into linux. You must be using an EFI system partition.

Setup

Install efibootmgr

Arch Linux:

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SUBSYSTEM=="i2c-dev", ACTION=="add",\
	ATTR{name}=="NVIDIA i2c adapter*",\
	TAG+="ddcci",\
	TAG+="systemd",\
	ENV{SYSTEMD_WANTS}+="ddcci@$kernel.service"

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Minimal GNOME Shell Setup

GNOME is nice, but it comes with a lot of packages by default. You may wish to install a more lightweight version.

Packages

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• tiffcp

• scantailor

• ocrmypdf

• tesseract

• awesome-scanning - another list of tools