{"id":105179,"date":"2022-09-27T15:37:00","date_gmt":"2022-09-27T13:37:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-komandnyj-interpretator-bash-5-2"},"modified":"2022-09-27T15:37:00","modified_gmt":"2022-09-27T13:37:00","slug":"dostupen-komandnyj-interpretator-bash-5-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/dostupen-komandnyj-interpretator-bash-5-2","title":{"rendered":"Dostupn\u00fd je pr\u00edkazov\u00fd interpret Bash 5.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po dvadsiatich mesiacoch v\u00fdvoja bola uverejnen\u00e1 nov\u00e1 verzia pr\u00edkazov\u00e9ho interpret\u00e1tora GNU Bash 5.2, ktor\u00fd je predvolene pou\u017e\u00edvan\u00fd vo v\u00e4\u010d\u0161ine distrib\u00faci\u00ed Linuxu. S\u00fa\u010dasne bol vytvoren\u00fd release kni\u017enice readline 8.2, pou\u017e\u00edvan\u00fd v bashe na organiz\u00e1ciu \u00faprav pr\u00edkazov\u00e9ho riadka.    <\/p>\n<p>Medzi k\u013e\u00fa\u010dov\u00e9 vylep\u0161enia patr\u00ed:  <\/p>\n<ul>\n<li class=\"l\"> Prepisan\u00fd k\u00f3d na anal\u00fdzu pr\u00edkazov\u00fdch substit\u00faci\u00ed (command substitution, pod\u00e1vanie v\u00fdstupu z vykonania in\u00e9ho pr\u00edkazu, napr\u00edklad &#171;$(command)&#187; alebo `command`). Nov\u00e1 implement\u00e1cia vyu\u017e\u00edva rekurz\u00edvny sp\u00f4sob volania parsera bison a pon\u00faka kvalitnej\u0161iu kontrolu syntaxe a skor\u00e9 odha\u013eovanie ch\u00fdb v substitu\u010dn\u00fdch kon\u0161trukci\u00e1ch.\n<li class=\"l\"> Vylep\u0161en\u00e1 anal\u00fdza a rozbalenie indexov pol\u00ed. Implementovan\u00e1 mo\u017enos\u0165 pou\u017eitia parametrov &#171;@&#187; a &#171;*&#187; vo vstavenej pr\u00edkaze unset na resetovanie k\u013e\u00fa\u010da so zadanou hodnotou namiesto resetovania cel\u00e9ho po\u013ea.\n<li class=\"l\"> Pridan\u00e1 nov\u00e1 nastavenie &#171;patsub_replacement&#187;, pri jej nastaven\u00ed sa znak &#171;&#038;&#187; v nahradzovanej re\u0165azci pou\u017e\u00edva na pod\u00e1vanie \u010dasti re\u0165azca, ktor\u00e1 zodpoved\u00e1 zadan\u00e9mu vzoru. Na vlo\u017eenie liter\u00e1lu &#171;&#038;&#187; je potrebn\u00e9 ho escapova\u0165 sp\u00e4tn\u00fdm lom\u00edtkom.\n<li class=\"l\"> Roz\u0161\u00edren\u00fd po\u010det situ\u00e1ci\u00ed, pri ktor\u00fdch nedoch\u00e1dza k odvetveniu \u010fal\u0161\u00edch procesov, napr\u00edklad, fork sa teraz nepou\u017e\u00edva pri pou\u017eit\u00ed kon\u0161trukcie &#171;$(&lt;file)&#187;.\n<li class=\"l\"> Implementovan\u00fd nov\u00fd intern\u00fd r\u00e1mec pre \u010dasova\u010de a v\u00fdpo\u010dty timeoutov.\n<li class=\"l\"> Poskytnut\u00e1 mo\u017enos\u0165 zap\u00ednania pri f\u00e1ze zostavovania (configure &#8212;enable-alt-array-implementation) alternat\u00edvneho sp\u00f4sobu implement\u00e1cie pol\u00ed, ktor\u00fd je optimalizovan\u00fd na dosiahnutie maxim\u00e1lnej r\u00fdchlosti pr\u00edstupu na \u00fakor zv\u00fd\u0161enej spotreby pam\u00e4te.\n<li class=\"l\"> Roz\u0161\u00edren\u00e9 pou\u017e\u00edvanie substit\u00faci\u00ed $&#8217;&#8230;&#8217; a $&#187;&#8230;&#187;, pou\u017e\u00edvan\u00fdch pri lokaliz\u00e1cii. Pridan\u00e9 nastavenie noexpand_translations a zostavovacia vo\u013eba &#171;configure &#8212;enable-translatable-strings&#187;, spravuj\u00face zap\u00ednanie podpory lokalizovate\u013en\u00fdch substit\u00faci\u00ed $&#187;&#8230;&#187;.\n<li class=\"l\"> Pridan\u00e1 a predvolen\u00e1 aktivovan\u00e1 nastavenie &#171;globskipdots&#187;, zakazuj\u00faca vr\u00e1tenie &#171;.&#187; a &#171;..&#187; pri rozbalovan\u00ed ciest.            <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57835\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0430\u0434\u0446\u0430\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 GNU Bash 5.2, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432 \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u0435 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u043e\u0432 Linux. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 readline 8.2, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 bash \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0438. \u0418\u0437 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0445 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u0439 \u043c\u043e\u0436\u043d\u043e \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c: \u041f\u0435\u0440\u0435\u043f\u0438\u0441\u0430\u043d \u043a\u043e\u0434 \u0434\u043b\u044f \u0440\u0430\u0437\u0431\u043e\u0440\u0430 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 \u0437\u0430\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434 (command substitution, \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u0432\u044b\u0432\u043e\u0434\u0430 \u043e\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0434\u0440\u0443\u0433\u043e\u0439 \u043a\u043e\u043c\u0430\u043d\u0434\u044b, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, &#171;$(command)&#187; [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105179","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0430\u0434\u0446\u0430\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 GNU Bash 5.2, 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\u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440 Bash 5.2 | ProHoster","og:description":"\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0430\u0434\u0446\u0430\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 GNU Bash 5.2, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u043f\u043e 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Linux.","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/dostupen-komandnyj-interpretator-bash-5-2","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-09-27T13:37:00+00:00","article:modified_time":"2022-09-27T13:37:00+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/105179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=105179"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/105179\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=105179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=105179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=105179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}