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20年前の私へ - 普通のエンジニアを楽しんで生きる #kosenconf131hokkaido

20年前の私へ - 普通のエンジニアを楽しんで生きる #kosenconf131hokkaido

高専カンファレンス in 北海道 2019 発表資料。
https://conf-hokkaido.connpass.com/event/122809/
#kosenconf131hokkaido

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Kihara, Takuya

August 17, 2019
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  1. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ࣗݾ঺հ w ໊લ
 ໦ݪ୎໵!UBDDL w ೥ྸ
 ࡀ

    w ॴଐ
 גࣜձࣾϊʔεσΟςʔϧ w ޷͖ͳϑΟΪϡΞεέʔτͷٕ
 εϓϨουɾΠʔάϧ
  2. LPTFODPOGIPLLBJEP ߴઐΧϯϑΝϨϯεJO๺ւಓ  w ݸਓͷΞ΢τϓοτ
 গͳ͍ w ৘ใ޻ֶجૅ w ਺ֶ

    w ίϯϐϡʔλͷߏ଄ w ΞϧΰϦζϜجૅ w ϓϩάϥϛϯάجૅ w αʔόʔ؅ཧ w ֶՊͷֶੜ༻αʔόʔ   ಘΒΕͨ΋ͷ μϝͩͬͨͱ͜Ζ
  3. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ
  4. LPTFODPOGIPLLBJEP ߴઐΧϯϑΝϨϯεJO๺ւಓ  w ࿦จॻ͚ͳ͔ͬͨ w ݸਓͷΞ΢τϓοτ
 গͳ͍ w ৘ใ޻ֶશൠ

    w ࡞จٕज़ w αʔόʔ؅ཧ w ݚڀࣨɺҰൠՊڭһ༻ w ΞϧόΠτܦݧ w খɾதֶੜ޲͚ͷ
 ݸਓࢦಋܕֶशक़   ಘΒΕͨ΋ͷ μϝͩͬͨͱ͜Ζ
  5. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ
  6. LPTFODPOGIPLLBJEP ߴઐΧϯϑΝϨϯεJO๺ւಓ  w ݸਓͷΞ΢τϓοτ
 গͳ͍ w ࣾձਓܦݧ ͷ࠷ॳ 

    w ސ٬ͱ޲͖߹͏ w ֤छ։ൃܦݧ w ΞϓϦܥ OPU8FC  w 8FCܥ͸গ͠   ಘΒΕͨ΋ͷ μϝͩͬͨͱ͜Ζ
  7. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ
  8. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ϓϩδΣΫτ಺ͷνʔϜϦʔμʔ w ςΫχΧϧϦʔυͱͯ͠ɺಛʹٕज़໘ͷ੹೚Λ࣋ͭɻ w ࡳຈࢢ಺ͷେखاۀͰ࡞ۀͨ͠Γɻ w

    ϓϩδΣΫτͷ֫ಘɾ҆ఆԽͷͨΊʹɺ
 ࡳຈ౦ژΛߦ͖དྷͨ͠Γɻ w ࣾ֎ͷษڧձʹࢀՃ w ࣾ಺ษڧձΛ։࢝ w ৽ೖࣾһݚमΛ։࢝ ࢲ͸ී௨ͷΤϯδχΞ  
  9. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ʮߦಈ Ξ΢τϓοτ ʯ͢Ε͹ʮมΘΔʯ͜ͱΛܦݧ w ࣾ֎ͷษڧձʹߦ͘Α͏ʹͳͬͨ͜ͱͰɺ
 ɹࣗ෼ͷҙ͕ࣝมΘͬͨɻ

    w ࣾ಺ͷษڧձΛ࠷ॳʹؤு͓͔ͬͨ͛Ͱɺ
 ɹࣾ಺ͷۭؾ͕มΘͬͨɻ w ࣾ಺ͷษڧձΛӡӦͰ͖ΔΑ͏ʹͳ͓͔ͬͨ͛Ͱɺ
 ɹ৽ਓݚमΛͰ͖ΔΑ͏ʹͳͬͨɻ w ৽ਓݚमΛͰ͖ΔΑ͏ʹͳ͓͔ͬͨ͛Ͱɺ
 ɹձࣾͷ࠾༻ํ਑ʹ෯͕Ͱ͖ͨɾઆಘྗ͕ߴ·ͬͨɻ ಘΒΕͨ΋ͷ  
  10. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ
  11. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ϓϩδΣΫτ؅ཧɾސ٬ ਌ձࣾࣾһ ͱͷର࿩ w શࣾͷٕज़ਪਐ ඞཁͳٕज़ͷબग़ɾීٴ

     w άϧʔϓͷ؅ཧɾ෦Լͷ׆ಈਪਐ w ৽ೖࣾһݚम w ࣾ಺֎ͷษڧձ࣮ࢪ w ࢒Γͷׂʙׂͷ࣌ؒʹɺ
 ௚઀ϓϩδΣΫτʹؔ܎ͳ͍͜ͱΛ޷͖ʹ΍ΕΔ࢓ࣄɻ ࢲ͸ී௨ͷΤϯδχΞ  
  12. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ୯ಠϓϩδΣΫτɾϓϩτλΠϓ w ݚम༻ڭࡐ w झຯ w

    8FCܥͷ΋ͷ w ࠷ۙ͸7VFKTΛ࢖͏ͷ͕झຯ w εϚʔτεϐʔΧʔ w "MFYB4LJMMΛͪΐͪ͜ΐ͜࡞ͬͯΈΔͷ͕झຯ ίʔυ΋ॻ͍͍ͯ·͢  
  13. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ
  14. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ
  15. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ ௚઀ଓ͍͍ͯΔ
 ݴޠ͸ແ͍
  16. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Perl Ξηϯϒϥ ਺ֶ,

    ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C++, Java,
 Perl, PHP ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ / AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ
  17. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ /

    AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Ξηϯϒϥ ਺ֶ, ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C, Java ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ࢓ࣄͷ੒Ռ
  18. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ /

    AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Ξηϯϒϥ ਺ֶ, ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C, Java ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ੒ՌͷͨΊʹ ඞཁͳಓ۩
  19. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ۀ຿ / σεΫτοϓΞϓϦ,
 ΨϥέʔΞϓϦ, WebΞϓϦ ۀ຿ /

    AndroidΞϓϦ,
 WebΞϓϦ (όοΫΤϯυ) ۀ຿ / Ϛωδϝϯτ, WebΞϓϦ, ͦͷଞ৭ʑ ߴઐ࣌୅ ίϯϐϡʔλͷ جૅ C, Ξηϯϒϥ ਺ֶ, ΞϧΰϦζϜ େֶ࣌୅ ৘ใ޻ֶ C, Java,
 Perl ཧ࿦ͷԠ༻ ࣾձਓ1 ࣾձਓ2 ݱࡏ C++, Java, PHP, C# C++, Java, PHP, JavaScript Java, PHP, JavaScript SunOS؅ཧ,
 ωοτϫʔΫجૅ FreeBSD؅ཧ,
 Linux؅ཧ FreeBSD؅ཧ Linux؅ཧ
 Ϋϥ΢υ Linux؅ཧ
 Ϋϥ΢υ ͜ͷ࣌୅ͷԼ஍͕͋ͬͯͦ͜ɺ ݴޠɾ؀ڥΛؾʹͤͣʹɺ ϓϩάϥϜ͢Δ͜ͱ͕Ͱ͖Δɻ
  20. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ʮࠜʯ
 ͕ࠜͬ͜େ͖͘৳ͼ͍ͯΕ͹ɺ
 ͦ͜ʹࢬ༿͕ໜ͍ͬͯ͘ɻ w ͜͜Ͱ࡞ΒΕͳ͔ͬͨྖҬΛ։୓͢Δͷ͸ɺ
 ͱͯ΋େมɻ

    w ݸਓతʹɺػցֶश΍χϡʔϥϧωοτϫʔΫ͸ɺ
 ද໘తʹ͔͠Θ͔Βͳ͍ɻ ਺ֶͷ͕ࠜ଍Γͳ͍ ֶੜ࣌୅͸ࠜΛ৳͹͢  
  21. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ίϯϐϡʔλͷجຊߏ଄ͷཧղ w ࠷ޙ͸$16͕શͯॲཧ͢Δɻ w ϝϞϦΛ͏·͘࢖Θͳ͍ͱޮ཰ʹ௚݁͢Δɻ w

    $16΍ϝϞϦΛҙࣝͨ͠ΞϧΰϦζϜɾ࣮૷ w $ݴޠ΍ΞηϯϒϥΛ௨ֶͯ͠Ϳɻ w Πϯϑϥ αʔόʔ04ɺ؅ཧɺωοτϫʔΫ ͷجૅ w Ϋϥ΢υʹͳͬͯ΋ɺߟ͑Δ΂͖͜ͱ͸มΘΒͳ͍ɻ ࢲ͕৳͹ͨࠜ͠  
  22. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w جૅతͳ࿩͕ࠜͬ͜ʹ͋Δ w ίϯϐϡʔλͷجຊతͳߏ଄ w ίϯϐϡʔλΛ͏·͘࢖͏ํ๏ w

    ίϯϐϡʔλಉ࢜Λܨ͛Δํ๏ w ͜ΕΒΛʮ஌Γʯʮ࢖͍ʯʮ΋ͷΛ࡞Γʯʮಈ͔͢ʯɻ ܨ͕͍ͬͯΔ΋ͷ  
  23. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  ʮී௨ͷߴઐੜʯ͕
 ʮී௨ͷΤϯδχΞʯͱͳΓɺ ʮී௨ͷΤϯδχΞΛָ͠ΜͰੜ͖͍ͯΔʯ
 ͱ͍͏͓࿩ɻ w ٕज़Λ਎ʹ͚͍ͭͯ͘ͷ͸ɺָ͍͠ɻ w

    ࠜͬ͜Λ͖ͪΜͱ৳͹͢ͱ
 ࢬ༿ ϓϩάϥϛϯάٕज़ ͸ɺ৳͹͠΍͘͢ͳΔɻ w Ξ΢τϓοτΛ͢Δͱɺ͞Βʹ৳ͼ͍ͯ͘ɻ ࠓճ఻͑ͨ͜ͱ  
  24. ߴઐΧϯϑΝϨϯεJO๺ւಓ LPTFODPOGIPLLBJEP  w ֶੜ࣌୅ʹɺແཧ͸͠ͳͯ͘΋ྑ͍ɻ w ͨͩɺʮఆظςετʯ͸ఆظతͳΞ΢τϓοτͷνϟϯεɻ
 ͜ΕΛɺେࣄʹͯ͠ཉ͍͠ɻ w ͦΕҎ֎ͷ͜ͱ΋΍ͬͯଛ͸͠ͳ͍ͷͰɺ


    খ͍͜͞ͱ͔Β΍Γ࢝ΊΑ͏ɻ w Ξ΢τϓοτ͢Δ͜ͱͰɺ
 ࣗ෼ͷʮܗʯ͕ՄࢹԽ͞ΕΔɻ
 ˠʮࣗ෼ͷ޷͖ͳܗʯΛࣗ෼Ͱ࡞Δ͜ͱ͕Ͱ͖Δ
 ɹ த਎͕͋Δલఏ Ξ΢τϓοτ