Camera on LAN - Check on LAN

 

python code to test camera ONVIF(EZVIZ) on LAN, if you do not know the ip, use nmap to scan.

 from onvif import ONVIFCamera

camera = ONVIFCamera(
    '192.168.1.8',
    80,
    'admin',
    'your_key',  #get from QR or app
    no_cache=True
)

print("Connected to ONVIF")

info = camera.devicemgmt.GetDeviceInformation()

print("Manufacturer:", info.Manufacturer)
print("Model:", info.Model)
print("Firmware:", info.FirmwareVersion)
print("Serial:", info.SerialNumber)
print("Hardware ID:", info.HardwareId)

Arduino modules: Wifi esp8266

 

[1] code and scheme https://github.com/imjeffparedes/iot-esp8266-arduino-interface/tree/master

Circuit simulation online tools

 

[1] https://app.tinkered.ai

 

Slides animation online

 

 

 

[1] Slides +Animation https://slidespeak.co/free-tools/animate-slides-with-ai 

[2] Slides to mp4 https://slidespeak.co/free-tools/convert-powerpoint-to-video-ai

[3] https://app.synthesia.io (To get text to speak/chrome) 

[4] Animation introductions https://www.flexclip.com (To get intro)

Online text to speeach tools

 

[1] Free 500 letters. https://fish.audio/app/text-to-speech/   #e-mail

Arduino Sensors - Gas

 

 

References:

[1] gas sensors MQx https://naylampmechatronics.com/blog/42_tutorial-sensores-de-gas-mq2-mq3-mq7-y-mq135.html

[2] gas sensor MQ135 https://www.tecneu.com/blogs/tutoriales-de-electronica/mq135

[3] gas sensor MQ137 (Ammonia) https://circuitdigest.com/microcontroller-projects/arduino-mq137-ammonia-sensor 

Resources(wifi):

[1] https://mecatronica.saisac.pe/producto/modulo-esp-01-esp8266-wifi/

[2] https://www.electromania.pe/?s=ESP8266&post_type=product

[3] https://www.teslaelectronic.com.pe/producto/modulo-esp8266-serial-wifi/?srsltid=AfmBOoq-9awBhXa6sHpJDswF0XyhD_mICthqr3IEZgQzeOaCFI0GygXP

Setup Arduino IDE

 

avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied

$ ls -l /dev/ttyACM* 

crw-rw-r-- 1 root dialout ... /dev/ttyACM0

Fix:

sudo chmod a+rw /dev/ttyACM0 

Resources:

[1] https://www.arduino.cc/en/software/

[2] Simulator https://www.tinkercad.com/ 

Reference Network tools

 

Resources:

[1] https://www.vosviewer.com/download 

[2] https://www.vosviewer.com/documentation/Manual_VOSviewer_1.6.20.pdf

[3] https://api.crossref.org/swagger-ui/index.html  #how to query

How to run on PC/Linux

javaws file.jnlp

If not installed:

sudo apt install icedtea-netx

Linux history issue

 

echo "HISTSIZE=$HISTSIZE"
echo "HISTFILESIZE=$HISTFILESIZE"

#update the .bachrc file
# Keep more commands in memory
HISTSIZE=10000
# Keep more (or unlimited) lines in the history file
HISTFILESIZE=100000
# or for effectively unlimited on Bash ≥4.3:
# HISTFILESIZE=-1

Git issues

Escenary:  You need to upload many files to github, then need to clone, add the files and upload from local, instead file by file.

 

cd Downloads/UnsaTesis/Waste/
ls
mkdir github
cd github
git clone https://github.com/fincahuanaco/solid_waste_peru.git
ls
cd solid_waste_peru/
ls
git add .
git commit -m "Add maps of Lima and Arequipa"
git config --global user.email "you@example.com"
git commit -m "Add maps of Lima and Arequipa" #after added files to directory
git push origin main
git config --global user.email "you@example.com"
git push origin main
git config --global credential.helper store #store credentials on disk
clear
git push origin main
   

Writing tools

Change image size during paper writing (overleaf time compilation affected)

sudo apt install pngquant

pngquant --quality=90-100 budget_map.png  

pngquant --quality=85-95 waste_stress_result.png  #more aggressive

sudo apt install oxipng #does not installed for me
 

Bonus

Cut video using ffmpeg

ffmpeg -ss 00:30:30 -i DAIA-Mat-Sec2-S15.mp4  -c copy DAIA-Mat-Sec2-S15_output.mp4

 

 

 

 

 

Probability and Statistical notes

Books

[1] https://probability4datascience.com/index.html

 

Courses

[1] http://web.stanford.edu/class/cme308/OldWebsite/notes/

Voice enhacer free tools

Resources:

[1] https://voiceenhancer.ai/

[2] https://audioenhancerai.com/

Peruvian social cases

 

Caso Cantuta 90's

[1] https://www.infobae.com/america/peru/2022/07/23/masacre-de-la-cantuta-el-crimen-de-los-estudiantes-a-manos-de-asesinos-encubiertos-en-las-fuerzas-armadas/

[2] https://elpais.com/internacional/2023-05-29/caso-la-cantuta-los-restos-de-las-victimas-que-permanecieron-en-inglaterra-durante-30-anos.html

Peruvian Metrics

 

String search: ipsos Distribución Poblacional 2022

[1] 2010-2025 https://cpi.pe/banco-de-datos/estadisticas-poblacionales/ 

Air quality

[1] Map https://www.iqair.com/es/air-quality-map

[2] https://www.senamhi.gob.pe/?p=calidad-del-aire-pronostico 

[3] Air and others https://sinia.minam.gob.pe/portal/estadisticas-del-sector-ambiente/?marcoOrdenador=sinia&eid=45&tab=datos

[4] PM2.5, PM10, NO2 https://sinia.minam.gob.pe/portal/estadisticas-del-sector-ambiente/?marcoOrdenador=sinia&eid=148&tab=datos 

Social Indexes

 

[1] Crime Index https://www.numbeo.com/crime/rankings.jsp 

[2] Traffic Index https://www.numbeo.com/traffic/rankings_by_country.jsp

Tracking Airplanes

 

 

Resources:

[1] https://objectiveunclear.com/

[2] Airplanes Live 3D https://objectiveunclear.com/airloom.html

[3] https://airplanes.live/

[4] Lima https://globe.airplanes.live/?icao=e80329

 

Book about Physics with Deep Learning

2021 Physics-based Deep Learning

 

Resources:

[1] Web https://physicsbaseddeeplearning.org

[1] Book https://arxiv.org/abs/2109.05237

[1] https://github.com/tum-pbs/pbdl-book

 

GoogleStreetMap Edition

 

[out:json][timeout:60];
(
  node["natural"="tree"]({{bbox}});
);
out body;
>;
out skel qt;

 

Resources:

[1] Create queries and export as geojson https://overpass-turbo.eu/

 

Free Custom Maps

Google maps alternatives

 

Resources:

[1] JavaScript Lib for maps https://leafletjs.com/   #associate to OpenStreetMap

[2] Peruvian shape files https://www.geogpsperu.com

[3] OpenStreetMap editor https://josm.openstreetmap.de/

      java -jar  josm-tested.jar

Latex edition tools

Apps:

[Image to tex] https://latexconvert.com/

[Tex to image] https://www.bruot.org/tex2img/ 

[Solve eq]  https://notegpt.io/photo-math

https://latexeditor.lagrida.com/  #offline  

Install fortinet on Ubuntu 20

Step 1:

wget -O - https://repo.fortinet.com/repo/forticlient/7.2/ubuntu/DEB-GPG-KEY | gpg --dearmor | sudo tee /usr/share/keyrings/repo.fortinet.com.gpg
 

Step 2:

sudo vi /etc/apt/sources.list.d/repo.fortinet.com.list

deb [arch=amd64] https://repo.fortinet.com/repo/6.4/ubuntu/ /bionic multiverse

Step 3:

sudo apt install forticlient 

ICMC VPN

[1] https://atendimentosti.usp.br/otrs/public.pl?Action=PublicFAQExplorer;CategoryID=12

clicar em Configure VPN e na janela de configuração New VPN Connection preencher somente os campos abaixo:

• Connection Name = VPN USP
• Remote Gateway = orion.uspnet.usp.br
• marcar a opção Customize port = 31443
• em Authentication marcar a opção Save login
• em Username digitar o Número USP e clicar em Save
• abrirá a tela de login e no campo Password digitar a senha única e clicar em Connect
•  

 

 

Super Resolution topic

 

References:

[1] github https://iterative-refinement.github.io/

[2] Image Super-Resolution via Iterative Refinement https://arxiv.org/abs/2104.07636

 

 

Movil Tracer

Claro - Perú

[1] https://cuenta.claro.com.pe/DirectorioAbonadosMovil/servlet/directorioAbonados

 

OS Emulation on Ubuntu 20

 

 

sudo apt update && sudo apt install qemu-system-x86

 

# Create a 1GB disk image 

qemu-img create -f qcow2 win95.qcow2 1G

qemu-img create -f qcow2 win95.qcow2 500M #500MB

 # Run

qemu-system-i386 -m 64 -cpu pentium \ -drive file=win95.qcow2,format=qcow2 \ -net nic,model=pcnet -net user \ -soundhw sb16 \ -vga cirrus \ -cdrom /path/to/windows95.iso \ -boot d

#My command

$ qemu-system-i386 -m 64 -cpu pentium -drive file=win95.qcow2,format=qcow2,index=0,media=disk -drive file=./isos/W95_FULL_AR.iso,index=1,media=cdrom -fda ./isos/Windows95a.img -boot c -vga cirrus

 

 

Resources:

https://archive.org/  #Locate isos

 

Local PDF editor

 

 

[1] https://github.com/PDFCraftTool/pdfcraft

Image Flip to use on nemo

 

code in python for flip horizontal images:

from PIL import Image
import os
import sys

def flip_horizontal(input_path):
    # Split filename and extension
    base, ext = os.path.splitext(input_path)
    
    # Create output filename
    output_path = f"{base}_flipped{ext}"
    
    # Open image
    with Image.open(input_path) as img:
        # Flip horizontally
        flipped = img.transpose(Image.FLIP_LEFT_RIGHT)
        
        # Save result
        flipped.save(output_path)
    
    return output_path


# Example usage
if __name__ == "__main__":
    
    if len(sys.argv) < 2:
        print("No input files provided.")
        sys.exit(1)

    for input_image in sys.argv[1:]:
        try:
            output_image = flip_horizontal(input_image)
            print(f"Saved: {output_image}")
        except Exception as e:
            print(f"Error processing {input_image}: {e}")

Mobile development tools

Mobile development is the process of creating software applications for smartphones, tablets, and other mobile devices, primarily focusing on the Android and iOS platforms.

[1] https://flutter.dev/development/mobile  #framework/compiler for make apk

[2] https://dartpad.dev/  #preview code

Alternative pdf books

 

https://welib.org

https://annas-archive.gl

https://z-lib.gd/

3D blender resources

Step by step https://cgian.com/category/blender/

 

https://docs.google.com/presentation/d/1R9SXecAUshzz8HeN6VCLPUHpUJVBhTcMfQr0WIyszx4/edit?usp=sharing

 

Check gmail account for change address

 myaccount.google.com/google-account-email

Firefox - Disable You are sharing entire screen

 

 

about:config

privacy.webrtc.legacyGlobalIndicator

set to false (+add if not exist)  

privacy.webrtc.hideGlobalIndicator

set to true (+add if not exist)  


Jupyter issues

pip install notebook
jupyter notebook


pip install jupyterlab
jupyter lab 


pip install voila
voila

 

Upgrade to nodejs 20/22

curl -fsSL https://deb.nodesource.com/setup_20.x | sudo bash -
sudo apt-get install -y nodejs

 
curl -fsSL https://deb.nodesource.com/setup_22.x | sudo bash -
sudo apt-get install -y nodejs

References:

[1] https://jupyter.org/install

Kazam issues

 Kazam in ubuntu 20 does not show box when you choose area for screen capture

 

sudo add-apt-repository ppa:sylvain-pineau/kazam
sudo apt update
sudo apt install kazam
 

$ kazam --version        #works
kazam 1.5.3 'NX-72307'

 

AI Remove background

 Online tools

[1] work in private space (20c/day) https://ezremove.ai/

[2] Good for small images https://www.remove.bg/upload

[2] Average https://removal.ai/upload/

[3] Average https://snapbg.ai/upload

QGIS

[1] https://qgis.org/resources/installation-guide/#debian--ubuntu

 

Shapefiles

[1] Perú https://www.geogpsperu.com/2014/03/base-de-datos-peru-shapefile-shp-minam.html

 

Terminal code assistant

LM Studio [2]

chmod +x LM-Studio-*.AppImage
./LM-Studio-*.AppImage

 

Ollama on TUI

curl -fsSL https://ollama.com/install.sh | sh

ollama --version

ollama run qwen2.5-coder:1.5b

 

Resources:

 

[1] Opencode https://opencode.ai/download 

[2] LM Studio AppImage https://lmstudio.ai/

 

 

 

 

 

 

 

 

Winamp on Web

 

[1] Demo https://webamp.org/

[2] Source https://github.com/captbaritone/webamp/tree/master 

Gimp Horizontal Flip

 Automate  Horizontal flip by command line single and secure

First:

#!/bin/bash

for f in "$@"; do
    # Extract path, filename, and extension
    DIR="$(dirname "$f")"
    FILE="$(basename "$f")"
    NAME="${FILE%.*}"
    EXT="${FILE##*.}"

    OUTPUT="$DIR/${NAME}_flipped.$EXT"

    gimp -i -b "(let* (
      (image (car (gimp-file-load RUN-NONINTERACTIVE \"$f\" \"$f\")))
      (drawable (car (gimp-image-get-active-layer image)))
    )
    (gimp-item-transform-flip-simple drawable ORIENTATION-HORIZONTAL TRUE 0)
    (gimp-file-save RUN-NONINTERACTIVE image drawable \"$OUTPUT\" \"$OUTPUT\")
    (gimp-quit 0)
    )"
done

Second:

#!/bin/bash

for f in "$@"; do
    DIR="$(dirname "$f")"
    FILE="$(basename "$f")"
    NAME="${FILE%.*}"
    EXT="${FILE##*.}"

    OUTPUT="$DIR/${NAME}_flipped.$EXT"
    TMP="$(mktemp --suffix=".$EXT")"

    # Run GIMP flip
    gimp -i -b "(let* (
      (image (car (gimp-file-load RUN-NONINTERACTIVE \"$f\" \"$f\")))
      (drawable (car (gimp-image-get-active-layer image)))
    )
    (gimp-item-transform-flip-simple drawable ORIENTATION-HORIZONTAL TRUE 0)
    (gimp-file-save RUN-NONINTERACTIVE image drawable \"$TMP\" \"$TMP\")
    (gimp-quit 0)
    )" >/dev/null 2>&1

    # Check result
    if [ $? -eq 0 ] && [ -s "$TMP" ]; then
        mv "$TMP" "$OUTPUT"
        echo "✔ Flipped: $OUTPUT"
    else
        echo "✖ ERROR flipping $f"
        rm -f "$TMP"
    fi
done
 

 

Alternatives to overleaf

 

[1] https://typst.app/pricing/ 

[2] https://app.inscrive.io

[3] Using LLM https://prism.openai.com

References:

[1] https://inscrive.io/articles/overleaf-alternatives

 

 

Alternatives to coding using LLMs

[1] GLM-4.7 https://chat.z.ai/   (too much time/wrong answers)

 

OSE SUNAT

Nubefact

[1] https://www.operador.pe/registro 

[2] https://probar-xml.nubefact.com/

[3] xml examples https://drive.google.com/uc?id=1F5Tk3Wo23bNHcskf7PuPEjyZeU8q3Kwk&export=download&authuser=0

Android on docker

 

A minimal and customizable Docker image running the Android emulator as a service.

https://github.com/HQarroum/docker-android

Chrome disable keyring prompt

 Add --password-store=basic to the end of the command line. 

google-chrome-stable --password-store=basic.

Debug on Firefox

 Disable timers on current web page

in console write the following command

let id = setTimeout(() => {}, 0); while (id--) { clearTimeout(id); clearInterval(id); } 

 

Unminify JavaScript code

https://unminify.com/

Script service on Ubuntu

Install odoo as service  

Step 1: Create a script

 user  ~  vi /usr/local/bin/odoo-start.sh  
#!/bin/bash
# Optional: Port forward example with socat (install via apt install socat)
#socat TCP-LISTEN:8080,fork TCP:localhost:8069 &
# Your Odoo command (example for Odoo 17)

#exec /path/to/odoo-bin -c /path/to/odoo.conf --addons-path=/path/to/addons -d your_db --workers=2

export PYTHONHOME=/usr/local  # Or remove if not required
exec /home/user/Software/odoo-17.0/venv/bin/python3 /home/user/Software/odoo-17.0/odoo-bin  --http-port=8070 -d casa17g4

Step 2: Create service

 user  ~  vi /etc/systemd/system/odoo17.service  
[Unit]
Description=Odoo 17 Service
After=network.target postgresql.service

[Service]
Type=simple
User=user
Group=user
WorkingDirectory=/home/user/Software/odoo-17.0
ExecStart=/usr/local/bin/odoo-start.sh
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target

 

Step 3: Run and Debug

sudo systemctl daemon-reload 

sudo systemctl reset-failed odoo17 

sudo systemctl start odoo17

sudo journalctl -u odoo17 -e #  See error

sudo journalctl -u odoo17 -f #  See live 

 

Step 4: Set it for boot

systemctl list-unit-files --type=service --state=enabled | grep odoo

sudo systemctl enable odoo17

systemctl list-unit-files --type=service --state=enabled | grep odoo

 

sudo systemctl disable odoo17  # disable from boot list
 

 

Debug tools

 

Translate tokens (decode)

[1] https://www.jwt.io/

PC with Wifi to HOTSPOT

Resources:

[1] https://mypublicwifi.com/publicwifi/en/index.html

 

Javascript DEBUG functions

 

 

Object.entries(obj)

const obj = { foo: "bar", baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]

const obj = { foo: "bar", baz: 42 };
const map = new Map(Object.entries(obj));
console.log(map); // Map(2) {"foo" => "bar", "baz" => 42}

// Using for...of loop
const obj = { a: 5, b: 7, c: 9 };
for (const [key, value] of Object.entries(obj)) {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
}

// Using array methods
Object.entries(obj).forEach(([key, value]) => {
  console.log(`${key} ${value}`); // "a 5", "b 7", "c 9"
});

const object = {
  a: 1,
  b: 2,
  c: 3,
};

console.log(Object.getOwnPropertyNames(object));
// Expected output: Array ["a", "b", "c"]
   

const object1 = {
  a: 'somestring',
  b: 42,
  c: false
};

console.log(Object.values(object1));
// Expected output: ["somestring", 42, false]

 

 

 

References:

[1] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries

[2] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames

 

Find free cameras

 

 

https://github.com/2l7b/public-camera-indexing-insights

Interactive Learning

Interactive learn for example docker, kubernetes, linux, python and more

Resources:

[1] https://kodekloud.com/studio/labs

Equations edition tools online

Image to Tex

[1] https://latexconvert.com/

[2] https://www.img2latex.xyz/convert

[3] https://ai-math.io/image-to-latex

[4] https://image2latex.comfyai.app/

[5] https://tools.useoctree.com/tools/math-to-latex

[6] https://www.math2tex.com/ #login required

[7] https://mathpix.com/image-to-latex #login required

[8] Standalone https://github.com/lukas-blecher/LaTeX-OCR

 

Tex to Image

[1] https://latexeditor.lagrida.com/   

[2] https://www.bruot.org/tex2img/   #choose size 1x, 2x, ....

 

Solve equation/equations from image

[1] Image to Latex code (txt) https://notegpt.io/photo-math 

 

Editors

[1] https://quicklatex.com/

 

 

 

 

Tools

[1] extract endpoints/URLs https://github.com/s0md3v/Diggy/tree/master

[2] alternative to nmap https://github.com/s0md3v/Smap

 

3D Virtual camera from 2D image

Qwen Image Edit 2511 — 3D Camera Control 

[1] https://huggingface.co/spaces/multimodalart/qwen-image-multiple-angles-3d-camera

Juicio Fujimori

Testimonios:

[1]  Sesion 29 / Santiago Martin Rivas https://www.youtube.com/watch?v=yKYVZirFdhs

[2]  Sesion 30 / Santiago Martin Rivas https://www.youtube.com/watch?v=rXx4uFF8yaM

[3] Sesion 28 / Carlos Pichilingue

[4] Sesion 57/  Gral Rodolfo Robles Espinoza https://www.youtube.com/watch?v=uq6hwVLTLsw (Mafia Montesinos/Generales/Ejercito alternativo)

Caso Barrios Altos

[4] Sesion 17 / Pedro Suppo Sánchez https://www.youtube.com/watch?v=nVy6ysUzIWE

[5] Sesion 24 / Héctor Gamarra Mamani https://www.youtube.com/watch?v=IyNIHDJD9QE 

Caso Cantuta

[6] Sesion 19/ Ángel Felipe Sauñi Pomaya https://www.youtube.com/watch?v=A2lsUQ7VKTw

[7] Sesion 23/ Pablo Atúncar Cama https://www.youtube.com/watch?v=BBq6IqQrOAY

Hoy en dia

[1]  Hercules Gomez Casanova sale libre https://www.youtube.com/watch?v=w2rhaj_GiBI

Sentencia Final

Sesion 161 https://www.youtube.com/watch?v=zLl9A69dTuU

Referencias:

[1]  Escuela de las Americas, egresados https://derechos.org/soa/pe-mq.html

 

Odoo 17 Limit products to load on PoS

Problem: Time to load is too big. We have 8k products and it take 30seg to load, but is exist concurrence  it increase, then we trey to reduce that time without program many code.

Set these in Settings > Technical > System Parameters to limit initial data batch (backported from Odoo 18):

text
point_of_sale.limited_product_count = 500
point_of_sale.limited_customer_count = 100

Nemo thumbnail

For solve mp4 preview

sudo apt install ffmpegthumbnailer ffmpegthumbs

 

Odoo 17 Set report.url System Parameter

Problem: CSS file does not loading for apply style to pdf reports

Fail assets loading from manifest file

 

Go to Settings > Technical > System Parameters (if not exist add it)

Key: report.url
Value: https://your-production-domain.com
 

Sample:

Key: report.url
Value: http://127.0.0.1:8069
 

 

Odoo wkhtmltopdf issue

Solve wkhtmltopdf 0.12.5 (with patched qt) for Odoo 17

 


wkhtmltopdf -V

wkhtmltopdf 0.12.5

 

sudo apt remove wkhtmltopdf

Get the latest official builds from the wkhtmltopdf site. https://wkhtmltopdf.org/downloads.html

sudo dpkg -i wkhtmltox_0.12.6-1.focal_amd64.deb  
sudo apt install xfonts-75dpi
sudo dpkg -i wkhtmltox_0.12.6-1.focal_amd64.deb

wkhtmltopdf -V

wkhtmltopdf 0.12.6 (with patched qt)
 

 

 

cpu-z on ubuntu 20

sudo apt install cpu-x

 

References:

[1] https://en.ubunlog.com/cpu-x-know-hardware-equipment/

Odoo 17 issue on Ubuntu 20

Unable to find Wkhtmltopdf on this system

sudo apt-get install wkhtmltopdf  

 

 

Refeferences:
[1] https://www.odoo.com/forum/help-1/wkhtmltopdf-odoo-17-no-logo-or-footer-247715

Odoo change host OS

After copy old directory to new OS(U18 to U20) i got python error:

 fincahuanaco  (e) venv  ~  Software  odoo-17.0  pip3  
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python path configuration:
 PYTHONHOME = (not set)
 PYTHONPATH = (not set)
 program name = '/home/.../odoo-17.0/venv/bin/python3'
 isolated = 0
 environment = 1
 user site = 1
 import site = 1
 sys._base_executable = '/home/.../odoo-17.0/venv/bin/python3'
 sys.base_prefix = '/usr'
 sys.base_exec_prefix = '/usr'
 sys.platlibdir = 'lib'
 sys.executable = '/home/.../odoo-17.0/venv/bin/python3'
 sys.prefix = '/usr'
 sys.exec_prefix = '/usr'
 sys.path = [
   '/usr/lib/python310.zip',
   '/usr/lib/python3.10',
   '/usr/lib/lib-dynload',
 ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f8016431740 (most recent call first):
 <no Python frame> 

After execute the following command its solved:

 fincahuanaco  (e) venv  ~  Software  odoo-17.0  1  export PYTHONHOME=/usr/local

 

Ubuntu 20 Remote Mouse

remote-touchpad  available on snap

sudo apt install snap
sudo apt install snapd
 

sudo snap install remote-touchpad
 

Ubuntu 20 GLIBC 2.31 to 2.35

Error: version `GLIBC_2.34' not found 

 

You should be able to use any of the listed mirrors by adding a line to your /etc/apt/sources.list like this:

deb http://security.ubuntu.com/ubuntu jammy-security main 

 

sudo apt update
sudo apt install libc6 

References:

[1] https://packages.ubuntu.com/jammy/amd64/libc6/download

[2] https://stackoverflow.com/questions/71940179/error-lib-x86-64-linux-gnu-libc-so-6-version-glibc-2-34-not-found 

 

Ubuntu Desktop Info

 

systemctl status display-manager.service
echo $XDG_CURRENT_DESKTOP
XFCE
echo $DESKTOP_SESSION
xfce
 

Ubuntu 20 and Nautilus thumbnails problem

Linux Lite 5.8 with Ubuntu 20 does not show all thumbnails after settings

sudo apt-get install ubuntu-restricted-extras

 

Text to Voice online tools and codes

Text to Voice

[1] https://fish.audio/app/ #2026

[1] Free 2k https://luvvoice.com/es 

[2] Short text to voice https://clowerweb.github.io/kitten-tts-web-demo/

 

Upgrade old Android to 10 in Sony Xperia

 https://dev.androidfilehost.com/?w=files&flid=295879&sort_by=name&sort_dir=ASC

 https://twrp.me/sony/sonyxperia10.html

 

https://get.pixelexperience.org/devices

 

https://twrp.me/Devices/

 

Popular adb commands

• adb shell - launches a shell on the device
• adb push <local> <remote> - pushes the file <local> to <remote>
• adb pull <remote> [<local>] - pulls the file <remote> to <local>. If <local> isn’t specified, it will pull to the current folder.
• adb logcat - allows you to view the device log in real-time. You can use adb logcat -b radio to view radio logs, and adb logcat -C to view logs in colour
• adb install <file> - installs the given .apk file to your devic

 

https://xdaforums.com/t/guide-full-phone-backup-without-unlock-or-root.1420351/

 

Sunat padron

 

 

awk -F\| '{print>$1}' file1

awk -F\| '{print $1","$2","$5","$6" "$7" "$10","$8" "$9}' padron_reducido_ruc.txt > padron_reducido_rucname.c
sv

 

iconv -f ISO-8859-1 -t UTF-8 in.txt > out.txt

 

Odoo Compress/UnCompress

 

 [1]  https://github.com/nodeca/pako 

PoS Cache system

 

[1] Odoo Cache system in PoS https://www.cybrosys.com/blog/how-to-store-values-in-pos-cache-in-odoo-17

 

Líneas telefónicas Perú

 

[1] Verifica https://checatuslineas.osiptel.gob.pe/ 

Arduino Accesories

 [1] https://sawers.com.pe/modulo-lector-micro-sd-para-arduino-? 

[2] https://www.electromania.pe/productos/raspberry/placas/page/3 

Audio tools AI

 [1] Audio enhancer https://audioenhancer.ai/

 

Algorithms

 

[1] Introduction to Algorithms 3rd Edition Cormen https://fun4yo.xyz/book/introduction-to-algorithms-3rd-edition/ 

[2]  

 

Malware scan

[1] 250Mb https://virusscan.jotti.org/en-US/scan-file

[2] https://metadefender.com/

[3] 50Mb https://nordvpn.com/file-checker/

[4] https://internxt.com/virus-scanner 

[5] 100Mb https://www.joesandbox.com/

 

gedit mutiple windows problem

gsettings set org.gnome.gedit.preferences.ui show-tabs-mode 'always'
 

gsettings get org.gnome.gedit.preferences.ui show-tabs-mode

 

gsettings list-recursively org.gnome.gedit.preferences.ui         
org.gnome.gedit.preferences.ui bottom-panel-visible false
org.gnome.gedit.preferences.ui max-recents uint32 5
org.gnome.gedit.preferences.ui statusbar-visible true
org.gnome.gedit.preferences.ui show-tabs-mode 'always'
org.gnome.gedit.preferences.ui side-panel-visible false
org.gnome.gedit.preferences.ui toolbar-visible true

 

Common online tools

OCR

[1]  https://ocr.space/ 

 

Vectorize PNG to SVG

No Login 

[1] https://www.freeconvert.com/png-to-svg 

[2] https://svg-converter.com/potrace 

Loging required

[2] https://www.recraft.ai

[3] https://iconscout.com/ai/vectorizer

 

 

 

 

 

 

 

 

 

Python3 version alternatives and virtual environments

Solving multiple python installation:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2

sudo update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.10 3
 

sudo update-alternatives --config python3

Solving:

Error: Command '['/home/DRIVE/Temp/aa/bin/python3.9', '-Im', 'ensurepip', '--upg
rade', '--default-pip']' returned non-zero exit status 1.
 

apt-get install python3.6-dev python3.6-venv

python3.6 -m venv myVenv 

Upgrade pip

pip3 install --upgrade pip

 

Ubuntu 18 - Print Screen Key

Menu settings/keyboard

gnome-screenshot #default print screen

xfce4-screenshooter  #dialog to choose complete/area screen to capture

 

Vitamina D - Cancer

[1] https://ensedeciencia.com/2023/10/14/la-potente-vitamina-que-protege-frente-al-cancer-de-prostata-y-otros-tipos-de-cancer/

Odoo 17 - Custom adds

 

 

[1] Diario/Seq https://apps.odoo.com/apps/modules/17.0/sequence_for_journal

 

Ubuntu list services

 

sudo systemctl list-units

pgadmin4 issues on ubuntu 18

Ubuntu 18.04.5 LTS (Bionic Beaver)
 

pgadmin4-desktop pgadmin4-server pgadmin4-web

 

ImportError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by /usr/pgadmin4/venv/lib/python3.8/site-packages/cryptography/hazmat/bindings/_rust.abi3.so)

 

 fincahuanaco  ~  ldd --version
ldd (Ubuntu GLIBC 2.27-3ubuntu1.4) 2.27
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.

fincahuanaco  ~  sudo /usr/pgadmin4/bin/setup-web.sh

ImportError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by  
/usr/pgadmin4/venv/lib/python3.8/site-packages/cryptography/hazmat/bindings/_rust.abi3.so)
Error setting up server mode. Please examine the output above.

Docker Alternative

 fincahuanaco  ~  docker pull dpage/pgadmin4

 

sudo docker run -p 5050:5050 -e 'PGADMIN_DEFAULT_EMAIL=email@gmail.com' -e 'PGADMIN_DEFAULT_PASSWORD=password' -e 'PGADMIN_LISTEN_PORT=5050' -d dpage/pgadmin4

 

sudo docker ps

CONTAINER ID   IMAGE            COMMAND            CREATED          STATUS          PORTS     NAMES
2b0f1c329504   dpage/pgadmin4   "/entrypoint.sh"   25 minutes ago   Up 25 minutes             awesome_darwin

sudo docker stop 2b0f1c329504



sudo docker inspect 2b0f1c329504 | grep IPAddress  #discovery ip

 

#force use local network

sudo docker run -p 5050:5050 --network host -e 'PGADMIN_DEFAULT_EMAIL=email@gmail.com' -e 'PGADMIN_DEFAULT_PASSWORD=password' -e 'PGADMIN_LISTEN_PORT=5050' -d dpage/pgadmin4

 

Resume docker containers

$ sudo docker start  $(sudo docker ps -q -l)

 

Docker References:

 

[1] https://hub.docker.com/r/dpage/pgadmin4/

[2] Deploy https://www.pgadmin.org/docs/pgadmin4/latest/container_deployment.html

[3] https://stackoverflow.com/questions/53610385/docker-postgres-and-pgadmin-4-connection-refused

[4] Resume docker container https://stackoverflow.com/questions/21928691/how-to-continue-a-docker-container-which-has-exited

 

 

 

IPTV

 

Resources:

[1] https://iptv-org.github.io/

 

Photo Animation

 

Resources:

[1] AI Animation https://vivago.ai/video-generation

[2] Remove BG https://www.remove.bg/upload

 

Run python request over proxy

Code

import requests

proxies = {
   'http': 'http://72.10.160.172:9739',
}

url = 'https://httpbin.io/ip'
response = requests.get(url, proxies=proxies)
print(response.json())
 

 

 

References:

[1] https://www.zenrows.com/blog/python-requests-proxy#perform-requests

[2] https://free-proxy-list.net/

[3] https://stackoverflow.com/questions/57579359/use-python-sshtunnel-for-port-forwarding-rest-request

 

Ubuntu Forware port 80

 

#!/bin/bash
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8069
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 8070
iptables-save

 

Permanent in system by:

$sudo vi /etc/rc.local

References:

https://www.odoo.com/forum/help-1/change-to-port-80-instead-of-8069-23031

 

PostgreSQL json fields

select name->'es_PE',* from product_template where name->>'es_PE' like '%MEGACI%'

 

References:

[1] https://popsql.com/learn-sql/postgresql/how-to-query-a-json-column-in-postgresql

Ubuntu VGA Resolutions

 

References:

[1] https://pendrivelinux.com/vga-boot-modes-to-set-screen-resolution/

 

Ubuntu add user easily

 

 

$sudo adduser pharmaquipa

$sudo usermod -aG sudo pharmaquipa #add to sudo group

References

[1] https://www.digitalocean.com/community/tutorials/how-to-create-a-new-sudo-enabled-user-on-ubuntu

[2] https://phoenixnap.com/kb/how-to-create-sudo-user-on-ubuntu

Facturador Sunat SFS (Linux)

 

 

/usr/lib/jvm/java-8-openjdk-amd64/bin/java -jar ./facturadorApp-2.1.jar server prod.yaml

References:

[1] SFS(Sistema Facturador SUNAT) https://orientacion.sunat.gob.pe/6790-07-descarga-del-facturador

[2] Make temp certificate for test https://llama.pe/facturador-sunat-see-sfs-certificado-digital
 

Audacious Skins

 Winamp skins for Linux

https://lunduke.substack.com/p/miss-winamp-try-audacious-the-winamp

Notes run odoo 16 venv

Using previous virtual environment (~python 3.10)

pip install --upgrade pip
 

pip install lxml==5.1.0

pip3 install Werkzeug==2.0.2

pip install pyOpenSSL

pip3 install docutils
 

pip3 install num2words
 

 Trying on python3.8 by empy virtual environment

python3.8 -m pip install virtualenv

python3.8 -m virtualenv test  

source test/bin/activate     
 

sudo apt install python3.8-dev 

 

pip install -r requirements.txt
 

python3 odoo-bin --http-port=1616 -d enter02

 

Update pgadmin

pgadmin4 on web by python

$sudo mkdir /var/lib/pgadmin
$sudo mkdir /var/log/pgadmin
$sudo chown $USER /var/lib/pgadmin
$sudo chown $USER /var/log/pgadmin
$python3 -m venv pgadmin4
$source pgadmin4/bin/activate
(pgadmin4) $ pip install pgadmin4
(pgadmin4) $ pgadmin4

Change port, by default is 5050 but if you want to change(on the venv):

$PGADMIN_INT_PORT=6060 pgadmin4/bin/pgadmin4
 

Change the credentials(on the venv):

$pgadmin4/bin/pgadmin4-cli add-user email@gmail.com password


 

Remove credentials:

$ls /var/lib/pgadmin/storage
 

Enable remote access to pgadmin4

$vi pgadmin4/lib/python3.10/site-packages/pgadmin4/config.py
 

[1] https://www.digitalocean.com/community/tutorials/how-to-install-configure-pgadmin4-server-mode

 

References:

[1] https://www.pgadmin.org/download/pgadmin-4-python

[2] https://gcore.com/learning/how-to-install-pgadmin4-on-ubuntu/

AI Dog identifiers

 Online

[1] https://www.nyckel.com/pretrained-classifiers/dog-breed-identifier/

PostgreSQL command tools

 

Database size

select pg_size_pretty( pg_database_size('dbname') );


Tables order by size

select
  table_name,
  pg_size_pretty(pg_total_relation_size(quote_ident(table_name))),
  pg_total_relation_size(quote_ident(table_name))
from information_schema.tables
where table_schema = 'public'
order by 3 desc;

References:

https://stackoverflow.com/questions/21738408/postgresql-list-and-order-tables-by-size

 

Video edition issues

 Merge Video and Audio

ffmpeg -i video.mp4 -i audio.mp3 -c:v copy -c:a aac output.mp4

Android by VMWare on Linux

VMWare paremeters

• bios.forceSetupOnce = "TRUE"
  
• bios.bootDelay = "xxxx"

Resources

[1] Android images http://www.osboxes.org/android-x86/

References
[1] https://kb.vmware.com/s/article/1004129
[2] http://siliseed.com/2013/08/instalar-android-en-una-maquina-virtual-windows.html
[3] https://android.stackexchange.com/questions/141700/how-to-fix-android-x86-install-on-vmware
[4] https://android.stackexchange.com/questions/144535/android-x86-marshmallow-not-booting-on-virtualbox-and-vmware-workstation