JPvRiel

Enable persistent storage for the systemd journal log

Overview

The assumed default setting in /etc/systemd/journald.conf is Storage=auto which implies that systemd journaling will only persist the journal if the expected storage location is available. Otherwise, the journal data is stored in memory and lost between reboots. On Ubuntu 16.04, /var/log/journal does not exist by default. Create it to keep and query events from previous boots.

Considerations:

• Syslog still provides the persistant log records for Ubuntu 16.04, so enabling persistant systemd journal logging does cause a level of duplicaiton.
• There are sane defaults:

ilyaigpetrov

Tuning Windows 10 for Slow Machines

This guide is for those who dares to install Windows 10 on slow netbooks (1GB of RAM).
Though Windows update program is over, you still may use old Windows product keys from license stickers to install Windows 10 on old machines.

UPD Jan 2019
This article is quite old, some instructions may be obsolete.

byrnedo

func ComputeHmac256(message string, secret string) string {
	key := []byte(secret)
	h := hmac.New(sha256.New, key)
	h.Write([]byte(message))
	return base64.StdEncoding.EncodeToString(h.Sum(nil))
}

garybernhardt

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

tripleee

#!/bin/sh
# http://stackoverflow.com/a/38740102/874188

for p; do
    printf "/proc/%i/stat\0" "$p"
done |
xargs -r0 awk -v ticks="$(getconf CLK_TCK)" 'NR==1 { now=$1; next }
    { print strftime("%c " $1 " " $2, systime() - (now-($22/ticks))) }
    ' /proc/uptime

MOOOWOOO

# Created by .ignore support plugin (hsz.mobi)
### Python template
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class

# C extensions
*.so

huytd

[merge]
  tool = vimdiff
[mergetool]
  prompt = true
[mergetool "vimdiff"]
  cmd = nvim -d $LOCAL $REMOTE $MERGED -c '$wincmd w' -c 'wincmd J'
[difftool]
  prompt = false
[diff]
  tool = vimdiff

thomastweets

import Image
import sys
import glob
import ImageOps

# Trim all png images with white background in a folder
# Usage "python PNGWhiteTrim.py ../someFolder"

try:
    folderName = sys.argv[1]

r39132

import avro.schema
import io, random
from avro.io import DatumWriter, DatumReader
import avro.io

# Path to user.avsc avro schema
schema_path="user.avsc"
schema = avro.schema.parse(open(schema_path).read())

yongjhih

#!/usr/bin/env bash
# echo -e "a\nb\nc\n" | lastln b

function lastln() {
  pattern="$1"
  i=0
  n=-1
  while read line; do
    if [[ "$line" == "$pattern" ]]; then
      n=$i