{"id":75250,"date":"2020-03-24T19:42:19","date_gmt":"2020-03-24T17:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/obsuzhdenie-standartnye-unix-utility-kotorye-malo-kto-ispolzoval-i-ispolzuet-sejchas"},"modified":"2020-03-24T19:42:19","modified_gmt":"2020-03-24T17:42:19","slug":"obsuzhdenie-standartnye-unix-utility-kotorye-malo-kto-ispolzoval-i-ispolzuet-sejchas","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/administrirovanie\/obsuzhdenie-standartnye-unix-utility-kotorye-malo-kto-ispolzoval-i-ispolzuet-sejchas","title":{"rendered":"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Tydzie\u0144 temu Douglas McIlroy, tw\u00f3rca potoku UNIX i autor poj\u0119cia 'programowanie oparte na komponentach', <noindex><a rel=\"nofollow\" href=\"https:\/\/minnie.tuhs.org\/pipermail\/tuhs\/2020-March\/020664.html\">opowiedzia\u0142<\/a><\/noindex> podzieli\u0142 si\u0119 swoimi przemy\u015bleniami na temat interesuj\u0105cych i nietypowych program\u00f3w UNIX, kt\u00f3re nie zdoby\u0142y szerokiego uznania. Publikacja zainicjowa\u0142a o\u017cywion\u0105 dyskusj\u0119 na Hacker News. Zebrali\u015bmy najciekawsze w\u0105tki i cieszymy si\u0119, je\u015bli do\u0142\u0105czysz do dyskusji.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/493718\/\"><img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/718c9fbcd3e2608b4079aa16e0ccf7f7.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>Zdj\u0119cie \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/QmNnZj_Ok-M\">Virginia Johnson<\/a><\/noindex> Czym tak naprawd\u0119 jest problem<\/i><\/p>\n<h2>Praca z tekstem<\/h2>\n<p>\nW systemach operacyjnych podobnych do UNIX istnieje standardowy zestaw narz\u0119dzi do formatowania tekstu. Narz\u0119dzie <b><i>typo<\/i><\/b> umo\u017cliwia\u0142o przegl\u0105danie dokumentu pod k\u0105tem b\u0142\u0119d\u00f3w typograficznych i <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%93%D0%B0%D0%BF%D0%B0%D0%BA%D1%81\">hapaks\u00f3w<\/a><\/noindex> \u2014 s\u0142\u00f3w wyst\u0119puj\u0105cych w materiale tylko raz. Co ciekawe, program do wyszukiwania b\u0142\u0119d\u00f3w ortograficznych <noindex><a rel=\"nofollow\" href=\"http:\/\/man.cat-v.org\/unix-6th\/1\/typo\">nie korzysta<\/a><\/noindex> z s\u0142ownik\u00f3w. Opiera si\u0119 wy\u0142\u0105cznie na informacjach w pliku i przeprowadza analiz\u0119 cz\u0119stotliwo\u015bciow\u0105 na podstawie trigram\u00f3w (ci\u0105g trzech znak\u00f3w). Wszystkie niezb\u0119dne liczniki <noindex><a rel=\"nofollow\" href=\"https:\/\/minnie.tuhs.org\/pipermail\/tuhs\/2020-March\/020664.html\">s\u0105 przechowywane<\/a><\/noindex> w tablicy 26x26x26. Wed\u0142ug s\u0142\u00f3w Douglasa McIlroya, taka ilo\u015b\u0107 pami\u0119ci ledwo wystarcza\u0142a na kilka jednobajtowych licznik\u00f3w. Dlatego z oszcz\u0119dno\u015bci pisano je w postaci logarytmicznej.<\/p>\n<p>Dzi\u015b typo zosta\u0142o zast\u0105pione przez nowocze\u015bniejsze i dok\u0142adniejsze programy sprawdzania pisowni oparte na s\u0142ownikach. Jednak narz\u0119dzie wci\u0105\u017c jest pami\u0119tane \u2014 kilka lat temu zapalony programista <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/robpike\/typo\">przedstawi\u0142<\/a><\/noindex> zrealizowa\u0142 typo w j\u0119zyku Go. Repozytorium jest aktualizowane do dzi\u015b.<\/p>\n<p>Kolejnym narz\u0119dziem do pracy z dokumentami z lat 80. jest pakiet <b><i>Writer's Workbench<\/i><\/b> od Lorindy Cherry i Niny McDonald z Bell Labs. W jego sk\u0142ad <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Writer%27s_Workbench#Package_contents\">wchodzi\u0142y<\/a><\/noindex> narz\u0119dzia do okre\u015blania cz\u0119\u015bci mowy i stylu dokumentu, wyszukiwania tautologii i zbyt skomplikowanych zda\u0144. U\u017cywano ich jako wsparcia dla student\u00f3w, a przez pewien czas korzystali z nich <noindex><a rel=\"nofollow\" href=\"https:\/\/bit.ly\/2U9mSjT\">uczniowie Uniwersytetu Stanowego Kolorado w USA. Jednak na pocz\u0105tku lat 90. o Writer\u2019s Workbench zapomniano, poniewa\u017c nie zosta\u0142 w\u0142\u0105czony do Version 7 Unix. Tym niemniej to narz\u0119dzie kontynuowa\u0142o swoj\u0105 drog\u0119 poprzez na\u015bladowc\u00f3w \u2014 na przyk\u0142ad<\/a><\/noindex> uczniowie Uniwersytetu Stanowego Kolorado w USA. Jednak pod koniec lat osiemdziesi\u0105tych o Writer's Workbench zapomniano, poniewa\u017c nie zosta\u0142 uwzgl\u0119dniony w Version 7 Unix. Niemniej jednak to narz\u0119dzie kontynuowa\u0142o drog\u0119 pod\u0105\u017caj\u0105cych jego \u015bladem \u2014 na przyk\u0142ad, <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Grammatik\">dla IBM PC.<\/a><\/noindex> W UNIX istniej\u0105 tak\u017ce standardowe narz\u0119dzia, kt\u00f3re u\u0142atwiaj\u0105 prac\u0119 z formu\u0142ami. Znajduje si\u0119 tam preprocesor j\u0119zyka do formatowania wyra\u017ce\u0144 matematycznych.<\/p>\n<p>W systemie UNIX istniej\u0105 r\u00f3wnie\u017c standardowe narz\u0119dzia, kt\u00f3re u\u0142atwiaj\u0105 prac\u0119 z formu\u0142ami. Jest to preprocesor j\u0119zykowy do formatowania wyra\u017ce\u0144 matematycznych. <b><i>eqn<\/i><\/b>Jest znany tym, \u017ce do wy\u015bwietlenia wzoru programista musi opisa\u0107 go prostymi s\u0142owami i symbolami. S\u0142owa kluczowe pozwalaj\u0105 na przesuwanie znak\u00f3w matematycznych w pionie i poziomie, zmian\u0119 ich rozmiar\u00f3w oraz innych parametr\u00f3w. Je\u015bli przeka\u017cesz narz\u0119dziu ci\u0105g:<\/p>\n<pre><code class=\"bash\">suma od { k = 1 } do N { k sup 2 }<\/code><\/pre>\n<p>\nNa wyj\u015bciu zostanie wygenerowany nast\u0119puj\u0105cy wz\u00f3r:<\/p>\n<p><img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/afa0c33387f077ea8540be7961dd741d.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nW latach 1980-1990 eqn <noindex><a rel=\"nofollow\" href=\"https:\/\/news.ycombinator.com\/item?id=22582548\">pomaga\u0142<\/a><\/noindex> specjalistom IT w pisaniu podr\u0119cznik\u00f3w do oprogramowania. Ale p\u00f3\u017aniej zosta\u0142 zast\u0105piony przez system LaTeX, kt\u00f3ry <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/docs\/help\/posts\/#allowed_tags_formulae\">u\u017cywa<\/a><\/noindex> nawet Habr. Jednak eqn to pierwsze narz\u0119dzie tego typu, kt\u00f3re pozostaje cz\u0119\u015bci\u0105 system\u00f3w operacyjnych podobnych do UNIX.<\/p>\n<h2>Praca z plikami<\/h2>\n<p>\nW tematycznym w\u0105tku cz\u0142onkowie Hacker News wspomnieli kilka rzadko u\u017cywanych narz\u0119dzi do pracy z plikami. Jednym z nich <noindex><a rel=\"nofollow\" href=\"https:\/\/news.ycombinator.com\/item?id=22583046\">by\u0142<\/a><\/noindex> <b><i>comm<\/i><\/b> do ich por\u00f3wnania. Jest to uproszczony odpowiednik <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Diff\">diff<\/a><\/noindex>, dostosowany do pracy w skryptach. Jego <noindex><a rel=\"nofollow\" href=\"https:\/\/linux.die.net\/man\/1\/comm\">napisa\u0142<\/a><\/noindex> sam Richard Stallman (Richard Stallman) wraz z Davidem MacKenzie (David MacKenzie).<\/p>\n<p>Wyj\u015bcie programu sk\u0142ada si\u0119 z trzech kolumn. W pierwszej kolumnie znajduj\u0105 si\u0119 warto\u015bci unikalne dla pierwszego pliku, w drugiej \u2014 unikalne dla drugiego pliku. Trzecia kolumna zawiera warto\u015bci wsp\u00f3lne. Aby comm dzia\u0142a\u0142 poprawnie, por\u00f3wnywane dokumenty musz\u0105 by\u0107 leksykalnie posortowane. Dlatego jeden z cz\u0142onk\u00f3w serwisu <noindex><a rel=\"nofollow\" href=\"https:\/\/news.ycombinator.com\/item?id=22583686\">zaproponowa\u0142<\/a><\/noindex> pracowa\u0107 z narz\u0119dziem w nast\u0119puj\u0105cy spos\u00f3b:<\/p>\n<pre><code class=\"bash\">comm &lt;(sort fileA.txt) &lt;(sort fileB.txt)<\/code><\/pre>\n<p>\nComm mo\u017cna wygodnie u\u017cywa\u0107 do sprawdzania pisowni s\u0142\u00f3w. Wystarczy por\u00f3wnywa\u0107 je z dokumentem wzorcowym-s\u0142ownikiem. Bior\u0105c pod uwag\u0119 trudno\u015bci zwi\u0105zane z konieczno\u015bci\u0105 sortowania plik\u00f3w, istnieje <noindex><a rel=\"nofollow\" href=\"https:\/\/web.archive.org\/web\/20090402013730\/http:\/apicom.org.ua\/blog\/2009\/02\/16\/komanda-comm\/\">opinia<\/a><\/noindex>, \u017ce Stallman i MacKenzie napisali swoje narz\u0119dzie wy\u0142\u0105cznie dla tego zastosowania.<\/p>\n<p><img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/ad90deb64ab4fd2215cd0c47299102eb.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Zdj\u0119cie \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/VB1XqDcp6sc\">Marnix Hogendoorn<\/a><\/noindex> Czym tak naprawd\u0119 jest problem<\/i><\/p>\n<p>R\u00f3wnie\u017c uczestnik dyskusji na HN <noindex><a rel=\"nofollow\" href=\"https:\/\/news.ycombinator.com\/item?id=22583803\">zauwa\u017cy\u0142<\/a><\/noindex> mo\u017cliwo\u015bci operatora <i><b>paste<\/b><\/i>, kt\u00f3re by\u0142y dla niego nieoczywiste. Pozwala on na przeplatanie strumieni danych lub podzia\u0142 jednego strumienia na dwie kolumny przy wyj\u015bciu:<\/p>\n<pre><code class=\"bash\">$ paste &lt;( echo -e 'foonbar' ) &lt;( echo -e 'baznqux' )\nfoo     baz\nbar     qux\n$ echo -e 'foonbarnbaznqux' | paste - -\nfoo     bar\nbaz     qux\n<\/code><\/pre>\n<p>\nJeden z u\u017cytkownik\u00f3w <noindex><a rel=\"nofollow\" href=\"https:\/\/news.ycombinator.com\/item?id=22585103\">zauwa\u017cy\u0142em<\/a><\/noindex>, co cz\u0119sto prowadzi do stosowania nieoptymalnych rozwi\u0105za\u0144 w tych prostych operacjach: zaczynaj\u0105c od <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Fmt\">fmt<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Ex_(Unix)\">ex<\/a><\/noindex> i ko\u0144cz\u0105c na <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/johnkerl\/miller\">mlr<\/a><\/noindex> z <noindex><a rel=\"nofollow\" href=\"http:\/\/www.nsc.ru\/cgi-bin\/www\/unix_help\/unix-man?jot\">jot<\/a><\/noindex> i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.freebsd.org\/cgi\/man.cgi?query=rs&amp;sektion=1&amp;apropos=0&amp;manpath=freebsd\">rs<\/a><\/noindex>.<\/p>\n<p><i>Jakie standardowe mo\u017cliwo\u015bci system\u00f3w operacyjnych podobnych do UNIX by\u0142y dla ciebie odkryciem?<\/i><\/p>\n<blockquote><p><b>O czym piszemy w naszym korporacyjnym blogu:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/db0656feed61e91b940671b37ab5f985.png\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/era-arpanet?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=unixtools&amp;utm_content=blog\">Jak rozwija\u0142 si\u0119 system nazw domen: era ARPANET<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/63e6e0e03ebc4a3e19021bc3b0d2056b.png\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/pervie-dns-serveri?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=unixtools&amp;utm_content=blog\">Historia systemu nazw domen: pierwsze serwery DNS<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/b6f82ebfbd4f15956665983a173f3918.png\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/platnie-dns-imena?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=unixtools&amp;utm_content=blog\">Historia DNS: kiedy nazwy domen sta\u0142y si\u0119 p\u0142atne<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Dyskusja: standardowe narz\u0119dzia UNIX, kt\u00f3re ma\u0142o kto u\u017cywa\u0142 i u\u017cywa teraz\" src=\"\/wp-content\/uploads\/2020\/03\/a275e20583822938ec87cf580228dce6.png\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/voini-protokolov-dns?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=unixtools&amp;utm_content=blog\">Historia systemu nazw domen: \u201ewojny\u201d protoko\u0142\u00f3w<\/a><\/noindex><\/p><\/blockquote>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/493718\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0435\u0434\u0435\u043b\u044e \u043d\u0430\u0437\u0430\u0434 \u0414\u0443\u0433\u043b\u0430\u0441 \u041c\u0430\u043a\u0438\u043b\u0440\u043e\u0439 (Douglas McIlroy), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u043a\u043e\u043d\u0432\u0435\u0439\u0435\u0440\u0430 UNIX \u0438 \u0430\u0432\u0442\u043e\u0440 \u043f\u043e\u043d\u044f\u0442\u0438\u044f \u00ab\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u00bb, \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b \u043e\u0431 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u044b\u0445 \u0438 \u043d\u0435\u043e\u0431\u044b\u0447\u043d\u044b\u0445 UNIX-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430\u0445, \u043d\u0435 \u043d\u0430\u0448\u0435\u0434\u0448\u0438\u0445 \u0448\u0438\u0440\u043e\u043a\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f. \u041f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u044f \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0435 \u043d\u0430 Hacker News. \u041c\u044b \u0441\u043e\u0431\u0440\u0430\u043b\u0438 \u0441\u0430\u043c\u043e\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0435 \u0438 \u0431\u0443\u0434\u0435\u043c \u0440\u0430\u0434\u044b, \u0435\u0441\u043b\u0438 \u0432\u044b \u043f\u0440\u0438\u0441\u043e\u0435\u0434\u0438\u043d\u0438\u0442\u0435\u0441\u044c \u043a \u0434\u0438\u0441\u043a\u0443\u0441\u0441\u0438\u0438. \u0424\u043e\u0442\u043e \u2014 Virginia Johnson \u2014 Unsplash \u0420\u0430\u0431\u043e\u0442\u0430 \u0441 \u0442\u0435\u043a\u0441\u0442\u043e\u043c \u0412 UNIX-\u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":75251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-75250","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0435\u0434\u0435\u043b\u044e \u043d\u0430\u0437\u0430\u0434 \u0414\u0443\u0433\u043b\u0430\u0441 \u041c\u0430\u043a\u0438\u043b\u0440\u043e\u0439 (Douglas McIlroy), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u043a\u043e\u043d\u0432\u0435\u0439\u0435\u0440\u0430 UNIX \u0438 \u0430\u0432\u0442\u043e\u0440 \u043f\u043e\u043d\u044f\u0442\u0438\u044f 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