cronnelly’s gists

cronnelly / image-analyse

Created October 23, 2012 19:30

Find PNGs which should be re-encoded to JPG

find . -type f -iname "*.png" -print0 | while read -d $'\0' fn; do os=$(stat -c%s "$fn"); js=$(gm convert -quality 80 "$fn" jpg:- | wc -c); ratio=$(echo "scale=3; ($js * 100) / $os" | bc); echo "$ratio% $js $os $fn"; done | sort -n

cronnelly / screen_serve.sh

Created October 25, 2012 13:32

Serve X display snapshot over HTTP

	#!/bin/bash

	# Call from inet with this config:
	# www stream tcp nowait node /usr/local/bin/screen_serve.sh

	export XAUTHORITY=/home/node/.Xauthority
	export DISPLAY=:0
	filename="/tmp/screen-"$(uuidgen)".jpg"

	for i in `seq 100`; do

cronnelly / zram

Created November 25, 2012 14:42

A munin plugin to graph zram usage

	#!/bin/bash
	# -- sh --

	: << =cut

	=head1 NAME

	zram - Plugin to monitor zram usage

	=head1 CONFIGURATION

cronnelly / multi-tail-filter.sh

Created March 30, 2013 19:00

Tail and filter log files on multiple SSH hosts.

for i in $(seq 2); do ssh -A sl-shortlist-0$i "tail -f /var/log/apache2/other_vhosts_access.log | cut -f 4,5,6,7,8,13 | awk -F'=' '{if (\$NF > 500000) print \"$i:\", \$0; fflush()}'" & true; done | cat

cronnelly / node-upstart-template.conf

Last active December 17, 2015 17:09

Template Upstart script for Clock's Node.js applications, using nave.

	author "Michael Cronnelly"

	env NODE_ENV=testing
	env NODE_START=/var/application/<site>/server.js
	env NODE_VERSION=0.10.7
	env PORT=3310

	setuid node
	env HOME=/home/node

cronnelly / gist:6020857

Created July 17, 2013 14:08 — forked from robnoake/gist:6020849

	# Fix PuTTY's bad ACS handling in Unicode
	set-option -ga terminal-overrides ',*:enacs@:smacs@:rmacs@:acsc@'

	# Start from 1
	set -g pane-base-index 1
	set -g base-index 1

	# Colours
	set-option -g default-terminal screen-256color

cronnelly / gist:8382688

Created January 12, 2014 09:39

A crude test for UDP packet loss, with bash and netcat

	# On server:
	COUNT=0; while true; do nc -ulw0 1234 > /dev/null; echo $((++COUNT)); done

	# On client:
	for i in $(seq 6000); do echo "hello" >/dev/udp/<server>/1234; sleep 0.1; done

cronnelly / gist:9484112

Created March 11, 2014 11:43

	qemu-kvm (1.0+noroms-0ubuntu14.13) precise-security; urgency=medium

	* SECURITY UPDATE: privilege escalation via REPORT LUNS
	- debian/patches/CVE-2013-4344.patch: support more than 256 LUNS in
	hw/scsi-bus.c, hw/scsi.h.
	- CVE-2013-4344

	-- Marc Deslauriers <marc.deslauriers@ubuntu.com> Tue, 28 Jan 2014 09:08:09 -0500

	qemu-kvm (1.0+noroms-0ubuntu14.12) precise-proposed; urgency=low

cronnelly / gist:9862978

Created March 29, 2014 21:04

anthracite error

	Traceback (most recent call last):
	File "/home/anthracite/anthracite/bottle.py", line 763, in _handle
	return route.call(**args)
	File "/home/anthracite/anthracite/bottle.py", line 1622, in wrapper
	rv = callback(a, *ka)
	File "/home/anthracite/anthracite/bottle.py", line 1572, in wrapper
	rv = callback(a, *ka)
	File "./anthracite-web.py", line 123, in events_timeline
	(range_low, range_high) = backend.get_events_range()
	File "/home/anthracite/anthracite/backend.py", line 272, in get_events_range

cronnelly / client.sh

Last active August 29, 2015 14:05 — forked from nstielau/client.sh

	#!/bin/bash

	echo '{
	"handlers": ["debug"],
	"name": "push_woot_test",
	"output": "woot!",
	"status": 0
	}' > /dev/udp/127.0.0.1/3030

Michael Cronnelly cronnelly