{"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\/hu\/blog\/news\/dostupen-komandnyj-interpretator-bash-5-2","title":{"rendered":"El\u00e9rhet\u0151 a Bash 5.2 parancs\u00e9rtelmez\u0151","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>H\u00fasz h\u00f3napos fejleszt\u00e9s ut\u00e1n megjelent a GNU Bash 5.2 \u00faj verzi\u00f3ja, amely a legt\u00f6bb Linux-disztrib\u00faci\u00f3ban alap\u00e9rtelmezett. Ezzel egy id\u0151ben kiad\u00e1sra ker\u00fclt a readline 8.2 k\u00f6nyvt\u00e1r, amelyet a bash a parancssor szerkeszt\u00e9s\u00e9hez haszn\u00e1l.    <\/p>\n<p>A f\u0151bb fejleszt\u00e9sek k\u00f6z\u00e9 tartozik:  <\/p>\n<ul>\n<li class=\"l\"> A k\u00f3d \u00e1t\u00edr\u00e1sra ker\u00fclt a parancsok helyettes\u00edt\u00e9s\u00e9nek szerkezet\u00e9nek elemz\u00e9s\u00e9re (command substitution, m\u00e1sik parancs v\u00e9grehajt\u00e1s\u00e1nak kimenet\u00e9nek behelyettes\u00edt\u00e9se, p\u00e9ld\u00e1ul &#171;$(command)&#187; vagy `command`). Az \u00faj implement\u00e1ci\u00f3 a bison elemz\u0151 rekurz\u00edv h\u00edv\u00e1s\u00e1t haszn\u00e1lja, \u00e9s k\u00fcl\u00f6nb\u00f6z\u0151, magasabb szint\u0171 szintaktikai ellen\u0151rz\u00e9st k\u00edn\u00e1l, valamint kor\u00e1n \u00e9szleli a hib\u00e1kat a helyettes\u00edt\u00e9si szerkezetekben.\n<li class=\"l\"> Jav\u00edtva lett a t\u00f6mbindexek elemz\u00e9se \u00e9s kib\u0151v\u00edt\u00e9se. Lehet\u0151v\u00e9 v\u00e1lt a &#171;@&#187; \u00e9s &#171;*&#187; param\u00e9terek haszn\u00e1lata az unset be\u00e9p\u00edtett parancsban, amely lehet\u0151v\u00e9 teszi egy adott \u00e9rt\u00e9kkel rendelkez\u0151 kulcs vissza\u00e1ll\u00edt\u00e1s\u00e1t, nem pedig az eg\u00e9sz t\u00f6mb t\u00f6rl\u00e9s\u00e9t.\n<li class=\"l\"> \u00daj be\u00e1ll\u00edt\u00e1s ker\u00fclt hozz\u00e1ad\u00e1sra &#171;patsub_replacement&#187; n\u00e9ven, amelynek be\u00e1ll\u00edt\u00e1sakor a &#171;&#038;&#187; karakter a helyettes\u00edt\u00e9si karakterl\u00e1ncban a megadott mint\u00e1nak megfelel\u0151 r\u00e9sz behelyettes\u00edt\u00e9s\u00e9re szolg\u00e1l. Az &#171;&#038;&#187; liter\u00e1l behelyettes\u00edt\u00e9s\u00e9hez visszaford\u00edtott perjelet sz\u00fcks\u00e9ges alkalmazni.\n<li class=\"l\"> Kiterjesztett\u00fck azoknak a helyzeteknek a sz\u00e1m\u00e1t, amikor nem t\u00f6rt\u00e9nik \u00faj folyamatok fork-ol\u00e1sa, p\u00e9ld\u00e1ul a fork nem alkalmazhat\u00f3 a &#171;$(&lt;file)&#187;&#187; szerkezet haszn\u00e1latakor.\n<li class=\"l\"> \u00daj bels\u0151 keretrendszert val\u00f3s\u00edtottak meg az id\u0151z\u00edt\u0151 \u00e9s a timeoutok sz\u00e1m\u00edt\u00e1sa \u00e9rdek\u00e9ben.\n<li class=\"l\"> Lehet\u0151s\u00e9g biztos\u00edtva az \u00f6sszeszerel\u00e9si szakaszban (configure &#8212;enable-alt-array-implementation) egy alternat\u00edv t\u00f6mbmegval\u00f3s\u00edt\u00e1s aktiv\u00e1l\u00e1s\u00e1ra, amelyet a hozz\u00e1f\u00e9r\u00e9s maxim\u00e1lis sebess\u00e9g\u00e9nek el\u00e9r\u00e9se \u00e9rdek\u00e9ben optimaliz\u00e1ltak, a mem\u00f3riak\u00f6lts\u00e9g n\u00f6veked\u00e9se \u00e1r\u00e1n.\n<li class=\"l\"> Kiterjesztett\u00fck a $&#8217;&#8230;&#8217; \u00e9s $&#187;&#8230;&#187; helyettes\u00edt\u00e9sek haszn\u00e1lat\u00e1t, amelyek a lokaliz\u00e1ci\u00f3 sor\u00e1n alkalmazand\u00f3k. \u00daj be\u00e1ll\u00edt\u00e1s ker\u00fclt hozz\u00e1ad\u00e1sra, a noexpand_translations, valamint egy \u00f6sszeszerel\u00e9si opci\u00f3 &#171;configure &#8212;enable-translatable-strings&#187;, amely a lokaliz\u00e1lhat\u00f3 helyettes\u00edt\u00e9sek t\u00e1mogat\u00e1s\u00e1t ir\u00e1ny\u00edtja.\n<li class=\"l\"> \u00dajonnan hozz\u00e1adott \u00e9s alap\u00e9rtelmezetten enged\u00e9lyezett be\u00e1ll\u00edt\u00e1s a &#171;globskipdots&#187;, amely megtiltja a &#171;.&#187; \u00e9s &#171;..&#187; visszaad\u00e1s\u00e1t az \u00fatvonalak kib\u0151v\u00edt\u00e9sekor.            <\/ul>\n<p>Forr\u00e1s: <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 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0430\u0434\u0446\u0430\u0442\u0438 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