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alias l='ls -1A'         # Lists in one column, hidden files.
alias ll='ls -lh'        # Lists human readable sizes.
alias lr='ll -R'         # Lists human readable sizes, recursively.
alias la='ll -A'         # Lists human readable sizes, hidden files.
alias lm='la | "$PAGER"' # Lists human readable sizes, hidden files through pager.
alias lx='ll -XB'        # Lists sorted by extension (GNU only).
alias lk='ll -Sr'        # Lists sorted by size, largest last.
alias lt='ll -tr'        # Lists sorted by date, most recent last.
alias lc='lt -c'         # Lists sorted by date, most recent last, shows change time.
alias lu='lt -u'         # Lists sorted by date, most recent last, shows access time.

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select
  d, sum(COALESCE(value,0))
from
  generate_series('2016-01-01', '2016-10-01', '1 months'::interval) as "d"
left join
  metrics_raw
on
  d = date_trunc('months', metrics_raw.timestamp)
where
  metrics_raw.type is null OR

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bundle update --local --source ./path

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gulp = require 'gulp'
util = require 'gulp-util'
webpack = require 'webpack'
WebpackDevServer = require 'webpack-dev-server'
webpackConfig = require '../../../config/webpack.js'

gulp.task 'webpack-dev-server', (callback) ->
    # Start a webpack-dev-server
    myConfig = Object.create webpackConfig
    compiler = webpack myConfig

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uptime
dmesg | tail
vmstat 1
mpstat -P ALL 1
pidstat 1
iostat -xz 1
free -m
sar -n DEV 1
sar -n TCP,ETCP 1
top

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#
# This is the main Apache HTTP server configuration file.  It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
# In particular, see 
# <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
# for a discussion of each configuration directive.
#
# Do NOT simply read the instructions in here without understanding
# what they do.  They're here only as hints or reminders.  If you are unsure

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Create config drive:

mkdir -p /tmp/new-drive/openstack/latest
cp user_data /tmp/new-drive/openstack/latest/user_data
mkisofs -R -V config-2 -o configdrive.iso /tmp/new-drive
rm -r /tmp/new-drive

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# config/application.rb

config.generators do |g|
  g.assets = false
  g.helper = false
end

config.action_controller.include_all_helpers = false
config.active_record.schema_format           = :sql
config.colorize_logging = false

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favicon.ico, который кладем в корень сайта

В html
<link rel="apple-touch-icon" sizes="192x192" href="favicons/favicon-192x192.png">
<link rel="icon" type="image/png" sizes="192x192" href="favicons/favicon-192x192.png">
<meta name="msapplication-config" content="browserconfig.xml">

В browserconfig.xml
<?xml version="1.0" encoding="utf-8"?>
<browserconfig>

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deb http://ru.archive.ubuntu.com/ubuntu/ trusty main restricted universe
# deb-src http://archive.ubuntu.com/ubuntu/ trusty main restricted universe

deb http://ru.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe
# deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe

# deb http://ru.archive.ubuntu.com/ubuntu/ trusty-backports main restricted
# deb-src http://ru.archive.ubuntu.com/ubuntu/ trusty-backports main restricted

deb http://ru.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse