Tiempo de lectura: < 1 minuto Today I’m sharing a command that will help us find the largest files using Linux. We use the following command in the console: sudo find / -type f -exec du -Sh {} + 2>/dev/null | sort -rh | head -n 50 This will show the largest files and we can delete them. Si queremos resetear … Read more
Tiempo de lectura: 2 minutos To list files and folders in a directory in Linux or Windows, you need to use the tree command. Of course, here’s a tutorial that explains several options and variants of the tree command on Windows systems. The tree command allows you to visualize the directory and file structure in a directory and its subdirectories … Read more
Tiempo de lectura: < 1 minuto html Copy code Reading Time: < 1 minute Today, we are going to learn how to fix the error: Permissions 0644 for ‘*.key’ are too open. It is required that your private key files are NOT accessible by others.This private key will be ignored.Load key “*.key”: bad permissionsPermission denied (publickey). This problem is due to … Read more
Tiempo de lectura: 2 minutos Reading time: < 1 minute Today we are going to learn how to use the .ssh folder to connect to our SSH servers using RSA keys. The first thing we need to do is create an RSA key so that it generates the directory. Open the console and type: ssh-keygen We will be prompted with: ... Read more
Tiempo de lectura: < 1 minuto EnlighterJSRAW”>#!/bin/bash Function to print “Hello” function hello() { echo “Hello” } Function to print “Goodbye” function goodbye() { echo “Goodbye” } Menu echo “Select an option:” echo “1. Print Hello” echo “2. Print Goodbye” echo “3. Print Hello and Goodbye” read option case $option in 1) hello ;; 2) goodbye ;; 3) hello goodbye ;; … Read more
Tiempo de lectura: 3 minutos Reading time: 2 minutes Today I’m going to show you how to run scripts even after closing the Bash console, in other words, in the background. Running Scripts in the Background To execute a script in the background, you can use the & operator. The & operator at the end of a command tells the … Read more
Tiempo de lectura: < 1 minuto Reading time: < 1 minute If we have enough disk space and still encounter errors like No space left on device or Write failed. The first thing we need to do is check if there is space on the machine using the command: df -a As we can see, there is 30% available space and ... Read more
Tiempo de lectura: 2 minutos Reading time: 2 minutes In order to connect to remote servers, we can use the .ssh folder configuration and the config file that Ubuntu and Windows use to create SSH connections. This tool is presented as an alternative to Putty. The first thing we need to do is create our .ssh directory: In Ubuntu, it … Read more
Tiempo de lectura: 2 minutos Reading time: 2 minutes Hello, in today’s tutorial, I’m going to show you how to install Ubuntu (WSL2 or WSL) on Windows 10 and 11 to be able to use this distribution within Windows itself. This allows us, among other things, to use Ubuntu’s SSH, install a test environment, or install packages with apt. To … Read more
Tiempo de lectura: 2 minutos Reading time: 2 minutes Continuing with the Docker tutorials, I will explain how we can execute a command inside a Docker container using the Ubuntu console. If we have this example Docker Compose taken from the tutorial Deploying Apache Web Server with PHP using Docker Compose version: “3” # Indicate the Docker Compose version we … Read more
