bokwoon95

DO $$ DECLARE
    r RECORD;
BEGIN
    FOR r IN
        SELECT tablename FROM pg_catalog.pg_tables WHERE schemaname = 'public'
    LOOP
        EXECUTE 'DROP TABLE ' || quote_ident(r.tablename) || ' CASCADE';
    END LOOP;
END $$;

bokwoon95

#!/bin/bash

in="$1"
out="$(echo "$in" | sed 's/\.c$//g')"
rand="$(date +%s)$(LC_ALL=C tr -dc a-zA-Z0-9 < /dev/urandom | head -c10)"
cleanup() {
  rm -rf "$rand$out"
}
trap cleanup EXIT
if ! clang -Wall -Wextra "$in" -o "$rand$out"; then

bokwoon95

package main

import (
	"bytes"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"os"

bokwoon95

#!/bin/bash
shopt -s extglob
HELP="   Usage: multiprocessor.sh --pythonscript <script.py> --datadir <data_directory> [--resultdir <result_directory> --removeheaders --jobs <num_of_jobs>]

   multiprocessor.sh coordinates multiple instances of the same python script to
   run concurrently on files inside the data directory. This allows you to write
   python scripts that are single-threaded in nature, and let this script handle
   the concurrency.

   The only requirement is that the python script print its result to standard

bokwoon95

#!/bin/bash
sudo apt-get update
sudo apt-get install -y mysql-server
# sudo mysql_secure_installation
echo "
CREATE USER 'pg'@'localhost' IDENTIFIED BY 'pg';
CREATE USER 'pg'@'%' IDENTIFIED BY 'pg';
GRANT ALL PRIVILEGES ON *.* TO 'pg'@'localhost' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO 'pg'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;

bokwoon95

echo "bind R source-file ~/.tmux.conf\\; display \"Reloaded!\"
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R
bind e last-window
bind-key @ break-pane \\; last-window
bind-key S choose-window 'join-pane -v -s \"%%\"'
bind-key V choose-window 'join-pane -h -s \"%%\"'
set -sg escape-time 0

bokwoon95

#!/bin/bash
# 1) Install virtualbox https://www.virtualbox.org/wiki/Downloads
# 2) Download the latest ubuntu ISO https://ubuntu.com/download/desktop
# 3) Setup a new Virtualbox VM with the Ubuntu ISO (2GB RAM & 8GB Disk, dynamically allocated. Adjust to taste)
# 4) Install Virtualbox guest additions for the Ubuntu VM
# Open a terminal, run this script

# Add PostgreSQL APT repository https://www.postgresql.org/download/linux/ubuntu/
echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" | sudo tee -a /etc/apt/sources.list.d/pgdg.list
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

bokwoon95

-- https://stackoverflow.com/questions/3318727/postgresql-index-usage-analysis
SELECT relname, seq_scan-idx_scan AS too_much_seq, 
   case when seq_scan-idx_scan>0 THEN 'Missing Index?' ELSE 'OK' END, 
   pg_relation_size(relid::regclass) AS rel_size, seq_scan, idx_scan 
FROM pg_stat_all_tables 
WHERE schemaname='public' AND pg_relation_size(relid::regclass)>80000 
ORDER BY too_much_seq DESC;

bokwoon95

#!/usr/bin/expect

spawn dlv debug
expect "(dlv) "
foreach bp [lrange $argv 0 end] {
  send "break $bp\r"
}
send "continue\r"
interact

bokwoon95

#!/bin/bash

dump_tar_xz_contents() {
  total="$1"
  index="$2"
  file="$3"
  file_without_extension="$(basename "$file" .tar.xz)"
  echo "[START][$index/$total] $file"
  tar tf "$file" > "$file_without_extension.txt"
  echo "[END][$index/$total] $file"