a2ikm

require "objspace"

def memsize(model)
  model.all.inject(0) { |s, record| s + record.instance_variables.sum { |iv| ObjectSpace.memsize_of(record.instance_variable_get(iv)) } }
end

a2ikm

# pullするときにrebaseする
git config --global pull.rebase true

# mergeするときにfast-forwardせずにマージコミットを作る
git config --global merge.ff false

a2ikm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
      <string>limit.maxfiles</string>
    <key>ProgramArguments</key>
      <array>
        <string>launchctl</string>
        <string>limit</string>

a2ikm

#!/usr/bin/env perl -w

use strict;

$SIG{"CHLD"} = sub { exit; };

my $pid = fork();

if ($pid) {
  foreach my $sig (qw(TERM INT QUIT)) {

a2ikm

#!/usr/bin/env ruby

pid = fork do
  exec "long long command"
end

%i(TERM QUIT INT).each do |sig|
  trap(sig) do
    Process.kill(sig, pid)
  end

a2ikm

<key>NSAppTransportSecurity</key>
<dict>
  <key>NSExceptionDomains</key>
  <dict>
    <key>xip.io</key>
    <dict>
      <key>NSIncludesSubdomains</key>
      <true/>
      <key>NSExceptionAllowsInsecureHTTPLoads</key>
      <true/>

a2ikm

task :iterm do                                                                                       
  ItermWindow.open do                                                                                
    release_roles(:all).each do |host|                                                               
      hostname = host.hostname                                                                       
      open_tab "opened_by_iterm_window" do                                                           
        write "ssh #{hostname}"                                                                      
      end                                                                                            
    end                                                                                              
  end                                                                                                
end

a2ikm

ffmpeg -i infile.mkv -acodec aac -ab 256k -vn  outfile.m4a

a2ikm

#!/bin/sh

# デフォルトで1秒間隔
interval=${1:-1}

vmstat $interval | awk '{print strftime("%y/%m/%d %H:%M:%S"), $0} {fflush() }'

a2ikm

SELECT
  TABLE_SCHEMA,
  TABLE_NAME,
  PARTITION_NAME,
  TABLE_ROWS,
  CEIL(DATA_LENGTH / 1024 / 1024) AS DATA_LENGTH_MiB,
  CEIL(INDEX_LENGTH / 1024 / 1024) AS INDEX_LENGTH_MiB,
  CEIL((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024) AS TOTAL_LENGTH_MiB
FROM
  INFORMATION_SCHEMA.PARTITIONS