jcasadella

Useful Shell Commands

Find all files that contain a text

grep -rnw '/path/to/somewhere/' -e 'pattern'

More info: https://stackoverflow.com/questions/16956810/how-do-i-find-all-files-containing-specific-text-on-linux

jcasadella

Remove all installed versions of IntelliJ IDEA for MacOS

There's an oficial documentation with the paths where all files are stored, but not enough: https://www.jetbrains.com/help/idea/tuning-the-ide.html?_ga=2.212787218.746653765.1596784189-1872990392.1561121338#logs-directory

Complete list of commands to clean all previous IntelliJ IDEAs:

rm -rf ~/Library/Application\ Support/JetBrains/Idea*

rm -rf ~/Library/Application\ Support/IdeaIC*

jcasadella

Documentation Python

Credit to Christian Perez (https://github.com/chris-zen)

Install dependencies

brew install pyenv

Install different Python versions without conflicts

jcasadella

Stop and remove running dockers

docker ps -qa | xargs docker rm -f

Remove 'none' docker images

docker images | grep none | awk '{print $3}' | xargs docker rmi -f

Clean all local images

jcasadella

public class HelloWorld {

  public static void main(String[] args) throws Exception {
    if(System.out.getClass().getMethod("println", String.class).invoke(System.out, "HELLO WORLD!") == null) {}
  }
}

jcasadella

user www-data;
worker_processes 1;
 
events {
    worker_connections 1024;
}
 
http {
 #   include mime.types;
    default_type application/octet-stream;

jcasadella

## PEM Format
# Base64 encoded ASCII files and contain "-----BEGIN CERTIFICATE-----"
# and "-----END CERTIFICATE-----" statements.

## DER Format
# Binary from a certificate

## Convert from hex to binary
# xxd Concerts from binary to hex.
# Option "-r" reverts the conversion (from hex to binary)