- You can store a price in a floating point variable.
- All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
- All currencies are subdivided in decimal units (like dinar/fils)
- All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
- All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
- Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
- For any currency you can have a price of 1. (ZWL)
- Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# stacktrace java as one message | |
multiline { | |
#type => "all" # no type means for all inputs | |
pattern => "(^.+Exception: .+)|(^\s+at .+)|(^\s+... \d+ more)|(^\s*Caused by:.+)" | |
what => "previous" | |
} | |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
if [ -z "$1" ]; then | |
echo "Usage: sudo $0 /dev/sdh1" | |
exit 1; | |
fi | |
dd if=$1 of=/dev/null & pid=$! | |
while true; do | |
ps -p$pid --no-heading || break; | |
echo "-- $(date) ------------------"; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
################################################################## | |
# /etc/elasticsearch/elasticsearch.yml | |
# | |
# Base configuration for a write heavy cluster | |
# | |
# Cluster / Node Basics | |
cluster.name: logng | |
# Node can have abritrary attributes we can use for routing |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import javax.net.ssl.SSLParameters; | |
import javax.net.ssl.SSLSocket; | |
import javax.net.ssl.SSLSocketFactory; | |
import java.io.*; | |
/** Establish a SSL connection to a host and port, writes a byte and | |
* prints the response. See | |
* http://confluence.atlassian.com/display/JIRA/Connecting+to+SSL+services | |
*/ | |
public class SSLPoke { |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
loglevel.default = "DEBUG" | |
rdeck.base = "/var/lib/rundeck" | |
rss.enabled = true | |
dataSource { | |
dbCreate = "update" | |
url = "jdbc:h2:file:/var/lib/rundeck/data/rundeckdb;MVCC=true" | |
} | |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# Content of the file /etc/logstash/conf.d/squid.conf | |
# Squid logs MAC address of the source host | |
# Logs are sending by syslog-ng raw without standard log headers | |
input { | |
tcp { | |
host => "xxx.xxx.xxx.xxx" | |
port => xxxx | |
type => SQUID | |
tags => [SQUID] |
I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
\
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/env ruby | |
require 'rubygems' if RUBY_VERSION < '1.9.0' | |
require 'sensu-handler' | |
require 'hipchat' | |
require 'timeout' | |
module Sensu::Extension | |
class Hipchat < Handler # Sub-class the appropriate extension type |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/sh | |
rm -rf /var/lib/cloud/sem/* /var/lib/cloud/instance /var/lib/cloud/instances/* | |
cloud-init start 2>&1 > /dev/null | |
cloud-init-cfg all final |