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7VFKTॳ৺ऀ͕FMFDUSPOWVFͰ σεΫτοϓΞϓϦέʔγϣϯΛ ࡞੒ͨ͠࿩ WLBOTBJ7VFKT/VYUKTNFFUVQ 4"8

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$(whoami) w ࢯ໊Ճ౻फҰ࿠ ࡀ Ѫ஌ग़਎ɾେࡕࡏॅ ϋϯυϧωʔϜ4"8 ‣ ϗϥʔ͸ۤखͳͷͰɺөըl4"8zΛݟͨ͜ͱͳ͍ 4/4ΞΧ΢ϯτ ‣ 5XJUUFS!B[VLJ@FBUFS ‣ (JU)VCB[VLJQFOHVJO w ॴଐגࣜձࣾ.4&/ ೥໨ 2 Let’s play a game. FreeBSD macOS Vue.js Linux

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.BOQBHFPG4"8 w export EDITOR=vim w 04NBD04 6CVOUV-JOVY 'SFF#4% ֶੜ࣌୅͸6/*9-JOVY؀ڥ͕ϝΠϯ ‣ γΣϧ͸ओʹCBTI ࢓ࣄͷ։ൃ؀ڥ͸8JOEPXT w ϓϩάϥϛϯάݴޠ1FSM 1)1 +BWB4DSJQU ϑϨʔϜϫʔΫ͸-BSBWFMͱ7VFKT 3

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WLBOTBJNFFUVQࢀՃྺ w ࢀՃճ਺ճ ճ໨WLBOTBJ7VFKT/VYUKTNFFUVQ ‣ લճҰൠࢀՃ࿮ʹͯࢀՃ ճ໨WLBOTBJ7VFKT/VYUKTNFFUVQ ‣ ࠓճొஃ࿮ʹͯࢀՃ w 7VFKTྺ͓Αͦϲ݄ ΰϦΰϦͱ͸ॻ͍ͯͳ͍ 4

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ൃද֓ཁ 7VFKTॳ৺ऀ͕ FMFDUSPOWVFͰ࡞੒ͨ͠ σεΫτοϓΞϓϦέʔγϣϯΛ঺հ 5

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DTWFEJUPS w &YDFMϥΠΫͳ6*Ͱ$47ϑΝΠϧΛฤू͢Δπʔϧ (JU)VCB[VLJQFOHVJODTWFEJUPS w /PEFKTWҎલͰಈ࡞ /PEFKTWܥͰ͸ಈ࡞͠ͳ͔ͬͨʜ w ґଘύοέʔδͷ੬ऑੑ͸ະղܾ શવอक͍ͯ͠ͳ͍ʜ 6

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ͳΜͰ࡞ͬͨͷ w େֶӃੜ࣌୅ʹ5"ͷۀ຿Ͱ࠾఺݁ՌΛ$47ϑΝΠϧʹهड़ $47ϑΝΠϧͷจࣈίʔυ͸4IJGU@+*4 w େֶͷNBD04ͷ&YDFMͰฤूͯ͠อଘ͢Δͱ೔ຊޠ͕l_zʹ ݪҼϩέʔϧΛӳޠʹ͍͔ͯͨ͠ΒͬΆ͍ʜ /VNCFSTΛ࢖͏ͱσϑΥϧτ͕65'ͳͷͰจࣈԽ͚ w $47Λฤू͢Δπʔϧ͕ཉ͍͠ ࣗ࡞͠Α͏ 7

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ผͷํ๏͕͋ͬͨͷͰ͸ w ϩέʔϧΛ೔ຊޠʹઃఆ͢Ε͹ྑ͍ͷͰ͸ ׶͑ͯӳޠʹ͍ͯ͠Δ͔Βม͑ͨ͘ͳ͍ w /VNCFST΍-JCSF0⒏DFͱ͔୅༻ͨ͠Β͍͔Μͷ͔ Θ͟Θ͟5"ͷͨΊ͚ͩʹσϑΥϧτͷจࣈίʔυΛม͑ͨ͘ͳ͍ Θ͟Θ͟5"ͷͨΊ͚ͩʹ-JCSF0⒏DFͱ͔ೖΕΔͷ໘౗͍͘͞ 8

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࡞Δํ͕ΑͬΆͲखؒͰ͸ w ݐલ 7VFKTͷ࣮ફ ‣ ͔ͤͬ͘झຯͰษڧ͍͔ͯͨ͠Β׆༻͔ͨͬͨ͠ &MFDUSPOΛ࠾༻ͯ͠ϚϧνϓϥοτϑΥʔϜԽ ‣ NBD04͚ͩͰͳ͘ɺ8JOEPXT΍-JOVYͰ΋ར༻Մೳʹ w ຊԻ ࡞Γ͍͔ͨΒ࡞ͬͨ ‣ ࣮૷ָ͍͠ 9

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࢖༻͢ΔϥΠϒϥϦ w σεΫτοϓ؀ڥͷ։ൃ&MFDUSPO w +BWB4DSJQUϑϨʔϜϫʔΫ7VFKT w &YDFMϥΠΫͳ6*)BOETPOUBCMF w $47ύʔαQBQBQBSTF w จࣈίʔυͷࣗಈ൑ผFODPEJOHKBQBOFTF 10

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ओͳػೳ w $47ΛಡΈࠐΜͰ&YDFMϥΠΫͳςʔϒϧͱͯ͠දࣔ จࣈίʔυ΋ࣗಈ൑ผ w $47Λ&YDFMϥΠΫͳςʔϒϧΛ࢖ͬͯฤू w ฤूͨ͠ςʔϒϧ͔Β$47ʹग़ྗ จࣈίʔυΛࢦఆͯ͠ग़ྗ΋Մೳ 11

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ओͳػೳͷ֓ཁਤ 12

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$47ϑΝΠϧͷΦʔϓϯ w ϝΠϯϓϩηε બ୒͞ΕͨϑΝΠϧͷ಺༰Λऔಘ ‣ fsϞδϡʔϧͷreadFileSync()Λར༻ *1$௨৴Ͱ7VFʹϑΝΠϧͷத਎ΛૹΔ w Ϩϯμϥʔϓϩηε $47ͷςΩετ͔Βσʔλߏ଄ʹม׵ͯ͠ಡΈࠐΈ ‣ QBQBQBSTFͷparse()ϝιουͰ$47Λ഑ྻʹύʔε ‣ )BOETPOUBCMFͷloadData()ϝιουͰ഑ྻΛςʔϒϧʹׂΓ౰ͯ 13

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ฤू݁ՌΛ$47ϑΝΠϧʹอଘ w Ϩϯμϥʔϓϩηε ςʔϒϧͷߏ଄͔Β$47ςΩετʹม׵ ‣ QBQBQBSTFͷunparse()ϝιουͰςΩετԽ *1$௨৴ͰϝΠϯϓϩηεʹ಺༰Λૹ৴ w ϝΠϯϓϩηε $47ϑΝΠϧͱͯ͠อଘ ‣ fsϞδϡʔϧͷwriterStream.write()ʹΑͬͯϑΝΠϧʹग़ྗ 14

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Ϩϯμϥʔϓϩηε w 7VFKTͰϑϩϯτΤϯυͷॲཧΛ࣮૷ $47ϑΝΠϧͱ+BWB4DSJQUͰѻ͏จࣈྻͷΤϯίʔυͷ૬ޓม׵ ‣ FODPEJOHKBQBOFTFΛར༻ $47ͱςʔϒϧͷίϯϙʔωϯτ༻ͷσʔλߏ଄ͷ૬ޓม׵ ‣ 1BQBQBSTFͷར༻ ςʔϒϧͷॲཧ͸)BOETPOUBCMFʹؙ౤͛ 15

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Ϩϯμϥʔϓϩηε 16 $47ͱσʔλߏ଄ͷ૬ޓม׵ $47σʔλͷಡΈࠐΈͱ$47σʔλ΁ͷग़ྗ

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ϝΠϯϓϩηε w &MFDUSPOͰόοΫΤϯυͷॲཧΛ࣮૷ ΢Οϯυ΢ͷૢ࡞ ΢Οϯυ΢ͷ࡞੒ɾΫϩʔζͳͲ $47ϑΝΠϧͷΦʔϓϯ ςʔϒϧͷ಺༰Λ$47ϑΝΠϧʹอଘ ‣ &MFDUSPOͷ*1$௨৴ͱ/PEFKTͷfsϞδϡʔϧʹΑ࣮ͬͯݱ 17

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ϝΠϯϓϩηε 18 ϑΝΠϧΦʔϓϯͷॲཧ ϝχϡʔόʔͷઃఆ

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ۤ࿑ͨ͠఺ w 7VFͷίϯϙʔωϯτͱϦΞΫςΟϒγεςϜ ϑΝΠϧ͔ΒಡΈࠐΜͩ$47Λଈ࠲ʹςʔϒϧʹදࣔͰ͖ͳ͍ ฤू಺༰͕ग़ྗ࣌ʹ൓ө͞Εͳ͍ ࣮͸͋·Γ֮͑ͯͳ͍ʜ w &MFDUSPOͷ*1$௨৴ʹΑΔϨϯμϥʔͱϝΠϯϓϩηεͷ࿈ܞ Πϕϯτ͕͏·͘Ωϟονग़དྷͳ͍ 19

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·ͱΊ w FMFDUSPOWVFͰ͓खܰʹσεΫτοϓΞϓϦέʔγϣϯΛ࡞੒ 7VFKTͱ&MFDUSPOॳ৺ऀͰ΋࡞ΕΔ ‣ ؆୯ͱ͸ݴ͍ͬͯͳ͍ w )BOETPOUBCMFΛ࢖͑͹&YDFMϥΠΫͳΞϓϦέʔγϣϯΛखܰʹ࡞੒ )BOETPOUBCMFͷίϯϙʔωϯτʹσʔλΛloadData()Ͱ౉͚ͩ͢Ͱ0, ‣ ׳Εͳ͍ͱࠞཚ͠΍͍͢ 20

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠