NachoAz igarag

Docker

Descripción	Comando
Bajar imagen de Ubuntu	`docker pull ubuntu:18.04`
Listar imágenes descargadas	`docker images`
Arrancar un contenedor vía `IMAGE ID` o `TAG`	`docker run -it IMAGE_ID bash`
Arrancar un contenedor vía `TAG`	`docker run -it ubuntu:18.04 bash`

Descripción	Comando
Eliminar ficheros por fecha (todos los que superen la fecha)	`find /opt/backup -type f -mtime +30 -exec rm -f {} \;`
Eliminar ficheros por nombre	`find /var/log -name "*.log" -type f -mtime +30 -exec rm -f {} \;`
Calcular y ordenar directorios por tamaño	`sudo du -sch [!.]* *`
Detectar máquinas con nmap	`nmap -sn 192.168.0.1-254` ó `nmap -v -sn 192.168.0.0/24`

Cuando clonas un repo, tiene que contener el siguiente archivo.

Makefile
PKGBUILD
...

virtualenv --no-site-packages my-venv

ffmpeg -i <<video>> -vf "select=eq(pict_type\,I)" -vsync vfr frame_%04d.png -hide_banner

Using filter-repo

pip install -U git-filter-repo

	import numpy as np
	import cv2


	cap = cv2.VideoCapture('path_to_video.mp4')
	fourcc = cv2.VideoWriter_fourcc(*'mp4v')

	name = 'output.mp4'
	out = cv2.VideoWriter(name, fourcc, 25.0, (1920, 1080))

	"""
	Source: https://unix.stackexchange.com/questions/528490/python-removing-jpg-files-without-matching-txt-files
	Remove from the image folder any image that is not in the labels folder.
	It is recommended to make a previous raw folder for security. In the opposite
	case (more labels than images) rename the necessary directories and variables.

	.
	├── images
	│ ├── 1.jpg
	│ ├── 2.jpg

	# Move n files from one directory to another.
	# Useful for separating datasets in train/val
	# that do not have code implemented in the training itself.

	#!/bin/bash
	i=0
	j=$(stat source_folder/* --printf "%i\n" \| wc -l )

	NUM_FILES=314