{"id":138764,"date":"2025-07-06T17:12:03","date_gmt":"2025-07-06T15:12:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-komandnoj-obolochki-bash-5-3"},"modified":"2025-07-06T17:12:03","modified_gmt":"2025-07-06T15:12:03","slug":"reliz-komandnoj-obolochki-bash-5-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/reliz-komandnoj-obolochki-bash-5-3","title":{"rendered":"Rilascio della shell Bash 5.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dopo quasi tre anni di sviluppo, \u00e8 stata pubblicata una nuova versione dell'interprete della shell GNU Bash 5.3, utilizzato di default nella maggior parte delle distribuzioni Linux. Allo stesso tempo, \u00e8 stato rilasciato anche la libreria readline 8.3, utilizzata in bash per gestire l'editing della riga di comando.    <\/p>\n<p>Tra i principali miglioramenti si possono notare:  <\/p>\n<ul>\n<li class=\"l\"> Sono state implementate nuove forme di sostituzione dei comandi &#171;${ command; }&#187; e &#171;${|command;}&#187;, che consentono di catturare l'output di un comando senza generare un processo figlio separato e senza utilizzare tubi anonimi. I risultati dell'esecuzione del comando vengono restituiti come risultato della sostituzione o scritti nella variabile REPLY.\n<li class=\"l\"> \u00c8 stata aggiunta una nuova variabile GLOBSORT, che determina il modo di ordinamento durante il completamento del percorso del file. Ad esempio, \u00e8 possibile scegliere l'ordinamento per nome (GLOBSORT=name), dimensione (GLOBSORT=size) o tempo di modifica (GLOBSORT=mtime), e anche definire l'ordine diretto (dal minore al maggiore) o inverso (dal maggiore al minore) di ordinamento (ad esempio, con &#171;GLOBSORT=-size&#187; verranno mostrati prima i file pi\u00f9 grandi).\n<li class=\"l\"> Nella comando incorporato &#171;compgen&#187; \u00e8 stata aggiunta l'opzione &#171;-V varname&#187; per salvare i completamenti generati in una variabile, invece di inviarli all'output standard.\n<li class=\"l\"> Nella comando incorporato &#171;read&#187; \u00e8 stata aggiunta l'opzione &#171;-E&#187;, che utilizza la libreria readline con le regole di completamento automatico durante l'inserimento di dati.\n<li class=\"l\"> Nella comando incorporato &#171;source&#187; \u00e8 stata aggiunta l'opzione &#171;-p PATH&#187;, che consente di ridefinire l'elenco di ricerca nei percorsi dei file (il valore specificato viene utilizzato al posto della variabile $PATH).\n<li class=\"l\"> Il codice sorgente \u00e8 stato aggiornato per utilizzare lo standard C23. \u00c8 stata interrotta la possibilit\u00e0 di compilare con i compilatori in modalit\u00e0 &#171;K&#038;R C&#187; (stile conforme alla descrizione del linguaggio C nel libro &#171;The C Programming Language&#187; di Kernighan e Ritchie).\n<li class=\"l\"> Nella comando incorporato &#171;umask&#187; \u00e8 stata garantita la completa compatibilit\u00e0 con le specifiche POSIX.\n<li class=\"l\"> \u00c8 stata aggiunta la comando caricabile &#171;kv&#187;, che forma un array associativo basato su un insieme di dati in formato &#171;chiave valore&#187;.\n<li class=\"l\"> \u00c8 stata aggiunta la comando caricabile &#171;strptime&#187;, che trasforma la rappresentazione testuale di data e ora in tempo epocale (numero di secondi dal 1 gennaio 1970).\n<li class=\"l\"> \u00c8 stata aggiunta la comando caricabile &#171;fltexpr&#187;, che consente di eseguire operazioni aritmetiche in virgola mobile analogamente al comando let.\n<li class=\"l\"> \u00c8 stata aggiunta la variabile dinamica BASH_MONOSECONDS, che contiene il valore corrente dell'orologio monotono di sistema, che aumenta continuamente, anche quando l'ora viene riportata indietro.\n<li class=\"l\"> In modalit\u00e0 POSIX, il confronto delle stringhe nel comando &#171;test&#187;, utilizzando gli operatori &#171;&lt;&#187; e &#171;&gt;&#187;, viene ora effettuato tenendo conto della locale corrente.\n<li class=\"l\"> Nel comando &#171;bind -x&#187; \u00e8 consentita la separazione con uno spazio tra il tasto e il comando chiamato, se la sequenza \u00e8 racchiusa tra virgolette.\n<li class=\"l\"> Nella nuova versione di Readline \u00e8 stata proposta l'opzione &#171;search-ignore-case&#187; per la ricerca nella cronologia senza considerare il case dei caratteri. \u00c8 stato aggiunto il comando &#171;export-completions&#187; per esportare le opzioni di completamento delle parole per l'elaborazione in altri processi. \u00c8 stato aggiunto il comando &#171;execute-named-command&#187; per eseguire un comando il cui nome \u00e8 stato ottenuto dallo standard input.      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63532\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0442\u0440\u0451\u0445 \u043b\u0435\u0442 \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 5.3, \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 8.3, \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: \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u0444\u043e\u0440\u043c\u044b \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043a\u043e\u043c\u0430\u043d\u0434 &#171;${ command; }&#187; \u0438 &#171;${|command;}&#187;, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u0435\u0440\u0435\u0445\u0432\u0430\u0442\u0438\u0442\u044c \u0432\u044b\u0432\u043e\u0434 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0431\u0435\u0437 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u044f [&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-138764","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0442\u0440\u0451\u0445 \u043b\u0435\u0442 \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 5.3, 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