linux desktop (campus party recife)
DESCRIPTION
Slides feitos para a oficina de linux básico da Campus Party Recife (27/07/2012)TRANSCRIPT
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Linux DesktopCampus Party Recife
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Palestrantes
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Adriano MeloEngenheiro de software do Instituto Nokia de Tecnologia
Mestrando em inteligência artificial pela UFPE
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Thiago FigueredoEngenheiro de software do Instituto Nokia de Tecnologia
Meste em sistemas embarcados pela UFPE
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Wesley DavisonPesquisador do grupo de pesquisa em redes e telecomunicações da UFPE
Mestrando em redes multigigabit pela UFPE
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O que é?Quem o utiliza?
AplicaçõesInstalação
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O que é?
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Linux é um clone do sistema operacional Unixescrito a partir do zero por Linus Torvalds
com a ajuda de uma equipe de hackersatravés da internet [4].
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anúncio do linux kernel
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arquitetura
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linux kernel
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GNUGNU's Not Unix
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sistema operacional que só utiliza programasdesenvolvidos pela GNU e licenciados sob a GPL [5].
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projetos
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Quem o utiliza?
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Linux é estratégico parao Google desde a sua criação.
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Sistema operacional para celulares e tablets,está com 61% do market share nos EU [0].
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Chromium OS
Sistema operacional baseado no Ubuntu.já está no mercado (chromebook).
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Mozilla
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Firefox OS(era boot to gecko)
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Utiliza como base as tecnologiaslinux, apache, PHP e MySQL (LAMP)
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IBM
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Sequoia, BlueGene/Q
Computador mais rápido do mundo,possui 1.572.864 de núcleos! [1]
(91.8% dos 500 melhorescomputadores do mundo usam linux)
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Nokia
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Meego e Maemo
Sistemas operacionais voltados paraos dispositivos da Nokia
(os projetos foram descontinuados)
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Uso pessoal
Está com 5% do market share (Junho, 2012) [2]
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Servidores
Está com 60% do market share (2009) [3]
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Aplicações
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Navegadores
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Firefox(ou iceweasel)
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Google Chrome(ou chromium)
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Epiphany(padrão do gnome)
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Snowshoebrowser desenvolvido pelo INdT
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ambientes desktoptipicamente fornecem ícones, janelas,
barra de ferramentas, widgets...
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gnome 3
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gnome 2.30
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KDE Plasma Desktop
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XFCE
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XX Window System (ou X11) é um software e
protocolo de rede utilizado comobase para interfaces de usuário (GUIs)
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gerenciador de janelascamada de software entre o X e os
ambientes desktop, controla como janelas epaineis aparecem e como os usuários interagem
com elas.
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kWin(utilizado pelo KDE)
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Fluxbox
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Editores de texto
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gedit(padrão do gnome)
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kate(padrão do KDE)
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vim
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Produtividade
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LibreOffice(era OpenOffice e BrOffice)
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LibreOffice Calc(planilhas)
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LibreOffice Impress(apresentação)
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LibreOffice Writer(edição de texto)
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Instalação
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Qual distribuição escolher?
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distribuição GNU/Linuxsistema operacional mantido pela comunidade ou
empresa, utiliza o linux kernel e as ferramentas da GNUcomo softwares básicos.
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debian"The universal operating system"
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Debian Squeeze
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fedora“freedom . friends . features . first”
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Fedora 17
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Ubuntu"Linux for human beings"
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Ubuntu 12.04 LTS
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estrutura de diretórios
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/diretório raiz do sistema de arquivos
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/homediretório que contém os arquivos dos usuários
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/etcdiretório com os arquivos de configuração dos programas
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/usrcontém diretórios com comandos, bibliotecas, manuais,
jogos, headers de programas...
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/bootarquivos usados pelo boot loader
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/devdispositivos de disco, portas seriais, cdrom, webcam, ...
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/varcontém arquivos que mudam constantemente,
por exemplo, os logs de sistema.
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sistema de arquivosmeio de armazenamento de arquivos no disco. é
composto por nomes de arquivos, meta-dados, estruturahierárquica e controle de acesso.
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ext3•sistema de arquivos mais usado no linux•suporta arquivos entre 2GiB e 2TiB (a
depender do tamanho do bloco)•até 32.000 diretórios
•suporta estampas de tempo até 2038•precisão em segundos
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ext4•suporta arquivos de até 16 TiB•ilimitado número de diretórios
•suporta estampas de tempo até o ano 2514•precisão em nanosegundos
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swapmemória virtual usada para fazer paginação
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e ai?escolheu uma distro?
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obrigado
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Referências
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[0] - http://www.droid-life.com/2012/05/07/androids-market-share-balloons-to-61-in-the-u-s-during-q1-ios-drops-to-29/
[1] - http://www.top500.org/list/2012/06/100
[2] - http://www.w3schools.com/browsers/browsers_os.asp
[3] - http://www.pcworld.com/businesscenter/article/151568/ballmer_still_searching_for_an_answer_to_google.html
[4] - http://www.kernel.org/
[5] - http://www.gnu.org/gnu/manifesto.html