junquera

REMOTE_PORT=5432
LOCAL_PORT=5432

ssh -L $REMOTE_PORT:localhost:$LOCAL_PORT $REMOTE_HOST -N

junquera

HOST_1="192.168.1.10"
HOST_2="192.168.1.11"

HOST_1(){
  echo "HOST_1 config..."
  iptables -A INPUT -p tcp --dport 5432 -j ACCEPT
}

HOST_2(){
  echo "HOST_2 config..."

junquera

#!/usr/bin/env python

# Following the tutorial at: http://api.mongodb.com/python/current/tutorial.html#
from pymongo import MongoClient

# Client connection
client = MongoClient('localhost', 27017)

# DB Name
db = client.test

junquera

def set_pos(i, p, v):
    return i ^ 2**p if v else i - 2**p

def get_pos(i, p):
    pos_b = 2**(p-1)
    res = ((i ^ ((2**9-1) ^ pos_b)) & pos_b)
    return 1 if res > 0 else 0

junquera

// From https://stackoverflow.com/questions/610406/javascript-equivalent-to-printf-string-format/4673436#4673436
if (!String.prototype.format) {
  String.prototype.format = function() {
    var args = arguments;
    return this.replace(/{(\d+)}/g, function(match, number) { 
      return typeof args[number] != 'undefined'
        ? args[number]
        : match
      ;
    });

junquera

DB_HOST=$1
DB_PORT=$2
DB_NAME=$3
DB_USER=$4
DB_SUPERUSER=$5

psql -h $DB_HOST -p $DB_PORT -U $DB_SUPERUSER -c "ALTER DATABASE $DB_NAME OWNER TO $DB_USER;"

for i in $(psql -h $DB_HOST -p $DB_PORT -d $DB_NAME -U $DB_SUPERUSER \
            -c "select tablename from pg_tables where schemaname = 'public'"); do  

junquera

#include <stdio.h>

int main(int argc, char** argv){
  
    int* tmp = (int *) (argv - 1);
    printf("argc = %d;\n", argc);
    printf("memo = %d;\n", *tmp);
  
    return 0;
}

junquera

## Core latex/pdflatex auxiliary files:
*.aux
*.lof
*.log
*.lot
*.fls
*.out
*.toc
*.fmt

junquera

IPTables Cheatsheet

Allow port

sudo iptables -A INPUT -p tcp --dport $PORT -j ACCEPT

Drop rule

junquera

#!/bin/bash
PATH_TO_FIND="$1"
TEXT_TO_FIND="$2"
find $1 -type f |
while read f; do
  if [ $(grep $2 "$f" | wc -l) -gt 0 ]; then
    echo $f
  else
    if [ $(echo "$f" | grep $2 | wc -l) -gt 0 ]; then
      echo $f