vmi / linux_package_managers.md

Last active February 14, 2026 03:15

Linuxパッケージマネージャー機能対応表

操作	apt	dnf	pacman
パッケージ一覧更新	`sudo apt update`	`sudo dnf check-update`	`sudo pacman -Sy`
パッケージインストール	`sudo apt install PACKAGE`	`sudo dnf install PACKAGE`	`sudo pacman -S PACKAGE`
パッケージ削除	`sudo apt remove PACKAGE`	`sudo dnf remove PACKAGE`	`sudo pacman -R PACKAGE`
パッケージ検索	`apt search KEYWORD`	`dnf search KEYWORD`	`pacman -Ss KEYWORD`
アップグレード	`sudo apt upgrade`	`sudo dnf upgrade`	`sudo pacman -Syu`

vmi / test.rb

Created January 20, 2022 08:32

number format 3-digits with comma (ruby)

	# https://stackoverflow.com/questions/6458990/how-to-format-a-number-1000-as-1-000
	n = 1234567890
	puts n.to_s.gsub(/(\d)(?=\d{3}+(?!\d))/, "\\1,")

vmi / Main.java

Last active August 30, 2021 09:27

Script Engine Test

	import javax.script.ScriptEngine;
	import javax.script.ScriptEngineManager;
	import javax.script.ScriptException;

	public class Main {

	public static void main(String[] args) throws ScriptException {
	ScriptEngineManager manager = new ScriptEngineManager();
	ScriptEngine engine = manager.getEngineByName("js");
	System.out.println(engine.toString());

vmi / ファイル末尾の改行追加

Created June 30, 2021 08:23

	# https://unix.stackexchange.com/a/31955

	sed -i -e '$a\' file

vmi / WriteCSV.rb

Last active September 10, 2019 03:20

Snippet of writing Excel CSV (ja) by Ruby.

	#!/usr/bin/ruby

	require 'csv'

	BOM = "\u{FEFF}"

	CSV.open(filename, "w", encoding: Encoding::UTF_8) do \|csv\|
	csv << [ BOM + header1, header2, ... ]
	csv << [ cell1_1, cell1_2, ... ]
	end

vmi / ReadCSV.rb

Last active September 10, 2019 04:16

Snippet of reading Excel CSV (ja) by Ruby.

	#!/usr/bin/ruby

	require 'csv'

	### Anothor implementation:
	# Encoding.default_internal = Encoding::UTF_8
	# CSV.foreach(filename, encoding: Encoding::CP932) do \|row\| ...

	CSV.foreach(filename, encoding: "CP932:UTF-8") do \|row\|
	end

vmi / bundle-install.sh

Last active August 9, 2017 01:06

bundle install

	#!/bin/bash

	ruby=$(which ruby)
	shebang=""
	if [ "$ruby" != "/usr/bin/ruby" ]; then
	shebang="--shebang=$ruby"
	fi
	set -x
	bundle install --binstubs=vendor/bin --path=vendor/bundle $shebang

vmi / checkstyle.xml

Created June 8, 2017 10:10

How to configure aliasList of SuppressWarningsHolder in checkstyle.xml

	<module name="SuppressWarningsHolder">
	<property name="aliasList" value="com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocMethodCheck=javadoc,com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocTypeCheck=javadoc,com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocVariableCheck=javadoc"/>
	</module>

vmi / open_new_mail.rb

Created September 15, 2016 08:30

Outlookメール作成覚え書き

	require 'win32ole'

	# 参考
	# - Using Automation to Send a Microsoft Outlook Message
	# https://support.microsoft.com/en-us/kb/161088
	# - Office の開発 > Office クライアント > Outlook
	# https://msdn.microsoft.com/ja-jp/library/office/fp161224.aspx

	outlook = WIN32OLE.connect("Outlook.Application")
	mail = outlook.CreateItem(0)

vmi / popup-test-case.html

Created August 2, 2014 02:37

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
	<head profile="http://selenium-ide.openqa.org/profiles/test-case">
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<link rel="selenium.base" href="http://localhost" />
	<title>popup</title>
	</head>
	<body>
	<table cellpadding="1" cellspacing="1" border="1">

Motonori IWAMURO vmi

Linuxパッケージマネージャー機能対応表