20140529_nanapistudy_vol2_pub.pdf

Transcript

1. nanapi ษڧձ vol2 - Shellษڧձ - nanapi CTO Shuichi Wada / @wadap
2. • ࣮͸·ͩ2ճΊͷnanapiओ࠵ ͷษڧձͰ͢ • ಛʹςʔϚ͸ͳ͘ɺͦͷ࣌ʹ ڵຯ͋Δ͜ͱͰ΍Γ·͢ • લճ͸։ൃ؀ڥʹ͍ͭͯ࿩͢ ͷΛ΍Γ·ͨ͠ nanapiษڧձͱ͸ʁ
3. ࣗݾ঺հ • ࿨ాमҰ / @wadap • 1981೥ੜ·Ε • גࣜձࣾnanapi Co-Founderʢڞಉ૑ۀऀʣ
 औక໾ ࣥߦ໾һ CTO • αʔόΠϯϑϥʙαʔόαΠυ։ൃ͕ಘҙ෼໺ • ݱࡏͰ΋ΠϯϑϥपΓͷϝΠϯΤϯδχΞ
4. ຊ೔ͷςʔϚ
6. λʔήοτ • γΣϧૢ࡞ΛݟΒΕͯɺޙΖͷਓʹ՗͔ͭΕͨਓ • ͍ͭ΋ͷۀ຿ΛΑΓ଎͘ɺޮ཰Α࣮͘ߦ͍ͨ͠ਓ • γΣϧͷૢ࡞ʹࣗ৴͕ͳ͍ਓ
7. ͲΜͳ৬छʁ • ։ൃͷԆ௕ઢͰUnix/Linux৮ͬͯΔΤϯδχΞ • ͕ͬͭΓUnix/Linux৮ͬͯΔΤϯδχΞ • ΤϯδχΞ͡Όͳ͍ʢσβΠφʔͱ͔ʣ
8. ຊ୊
9. ຊ೔͸ͳ͢͜ͱ ϫϯϥΠφʔͰTIFMM͠Α͏ FNBDT͔ΒTIFMMΛ࢖͏͍͔ͭ͘ͷํ๏
10. ຊ೔͸ͳ͢͜ͱ ϫϯϥΠφʔͰTIFMM͠Α͏ FNBDT͔ΒTIFMMΛ࢖͏͍͔ͭ͘ͷํ๏
11. ͜Μͳ͜ͱ΍ͬͯ·ͤΜ͔ʁ $ cd /path/to/dir $ ls foo bar buzz $ mv foo foo.bak $ mv bar bar.bak $ mv buzz buzz.bak
12. shellscriptʹ͢Δͱ͜͏ #!/bin/sh ! LIST=$(ls /path/to/dir) for i in $LIST do mv $i{,.bak} done
13. 1ߦͰ΍Δͱ͜Μͳײ͡ for i in $(ls /path/to/dir); \ do mv $i{,.bak}; done
14. for͕࢖͑ΔͱḿΔ • shellૢ࡞ͬͯ܁Γฦ͠࡞ۀଟ͍ • forΛ͔ͭͬͨॻ͖ํ͕છΈ෇͚Δͱ͍͍ • ίϚϯυஔ׵ΛҾ਺ʹͱΔͱศར
15. $ dig s.nanapi.jp $ dig p.nanapi.jp $ dig m.nanapi.jp υϝΠϯʴIPΞυϨεͷ ରԠදͭ͘Γ͍ͨ
16. υϝΠϯʴIPΞυϨεͷ ରԠදͭ͘Γ͍ͨ for i in m p s ; \ do host $i.nanapi.jp ; \ done | grep addr | \ awk '{print $1" "$4}'
17. ࿈൪ϑΝΠϧͭ͘Γ͍ͨ • seqίϚϯυ -w ͰθϩຒΊͱ͔΋Ͱ͖Δ • {1..10}Έ͍ͨͳهड़ʢݺͼํෆ໌ʣ • {a..z}ͱ͔Ͱɺঢॱɾ߱ॱͰ΋࢖͑Δ
18. ࿈൪ϑΝΠϧ࡞Γ͍ͨ for i in $(seq -w 1 1 100); do touch file_$i.txt; done
19. ຊ೔͸ͳ͢͜ͱ ϫϯϥΠφʔͰTIFMM͠Α͏ FNBDT͔ΒTIFMMΛ࢖͏͍͔ͭ͘ͷํ๏
20. ͳͥemacsʁ • emacs͕޷͖͔ͩΒ • shellͷૢ࡞͸σϑΥϧτͰ͸emcasΩʔόΠϯυ • vim࢖ͬͯͯ΋ɺshellૢ࡞͸ͦͷ··͍͡Δਓଟ͍
21. emacs + shell • emacsͷ্ʹ͍ͯɺshell࢖͍͍ͨͱ͖͸͋Δ • σΟϨΫτϦͭͬͨ͘Γͱ͔ɺϑΝΠϧૢ࡞ͱ͔ • dired͸Ұ୴͓͍͓ͯ͜͏ • IDE͸Ұ୴͓͍͓ͯ͜͏
22. ผλʔϛφϧ೿
23. • CTRL + z Ͱbackgroud΁ • γϯάϧ΢Οϯυ΢ͰͰ͖Δ • emacs಺ͰϠϯΫͨ͠จࣈྻ ͔ͭͬͯshell࢖͍͍ͨ • λʔϛφϧͰͷίϐϖ΋ͳ͊ • tmux/screen͔ͭ͏ͷ΋ͳ͊ -nw೿ݶఆ background೿
24. • ୯ൃར༻ͳΒ͜Ε͕ศར • scriptॻ్͍ͯͯதͰ࣮ߦͨ͠ Γ͍ͨ͠ͱ͖ͱ͔ • ͔ͨ͠ඪ४Ͱ࢖͑ͨ͸ͣ M-! shell-command
25. • elispͰ࣮૷͞ΕͯΔshell • lsίϚϯυͳΒɺem-ls.el͕ݺ ͹Ε͍ͯΔ • ͘͢͝࢖͍ʹ͍͘͠ɺ͋͑ͯ ࢖Θͳ͍͍ͯ͘ͱࢥ͏ • ศརͳ࢖͍ํ͋Δͷ͔ͳɾɾɾ M-x eshell
26. • Լ෦ʹshellઐ༻΢Οϯυ΢͕ ग़ͯ͘Δ • F6ʹׂΓ౰ͯͯɺදࣔɾඇද ࣔΛτάϧͤͯ͞Δ • ඞཁͳͱ͖͚ͩʹ͔ͭ͑Δͷ Ͱ͘͢͝ศར shell-pop.el
27. ຊ೔ͷ·ͱΊ • ϫϯϥΠφʔͰॻ͘ͱ͍Ζ͍ΖḿΔ • ͱ͘ʹfor͸ศརͳͷͰखบʹͳΔͱ͍͍ײ͡ • emacsͷ࿩͕ଟͯ͘͢Έ·ͤΜ