{"id":101398,"date":"2021-09-24T22:22:40","date_gmt":"2021-09-24T20:22:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0"},"modified":"2021-09-24T22:22:40","modified_gmt":"2021-09-24T20:22:40","slug":"vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0","title":{"rendered":"Publication du jeu d'outils syst\u00e8me fondamentaux GNU Coreutils 9.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La version stable du jeu d'utilitaires syst\u00e8me de base GNU Coreutils 9.0 est disponible, comprenant des programmes tels que sort, cat, chmod, chown, chroot, cp, date, dd, echo, hostname, id, ln, ls, etc. Le changement significatif de num\u00e9ro de version est d\u00fb \u00e0 des modifications dans le comportement de certains utilitaires.    <\/p>\n<p>Principaux changements :  <\/p>\n<ul>\n<li class=\"l\"> Dans les utilitaires cp et install, le mode copy-on-write est activ\u00e9 par d\u00e9faut lors de la copie (utilisation de ioctl ficlone pour le partage de donn\u00e9es entre plusieurs fichiers au lieu de cr\u00e9er un clone complet).\n<li class=\"l\"> Dans les utilitaires cp, install et mv, des m\u00e9canismes fournis par le syst\u00e8me pour acc\u00e9l\u00e9rer les op\u00e9rations de copie sont utilis\u00e9s (utilisation de l'appel syst\u00e8me copy_file_range pour effectuer la copie uniquement c\u00f4t\u00e9 noyau sans transf\u00e9rer de donn\u00e9es dans la m\u00e9moire du processus dans l'espace utilisateur).\n<li class=\"l\"> Dans les utilitaires cp, install et mv, un appel plus simple et portable lseek+SEEK_HOLE est utilis\u00e9 pour d\u00e9terminer les trous dans les fichiers au lieu de ioctl+FS_IOC_FIEMAP.\n<li class=\"l\"> L'utilitaire wc utilise des instructions AVX2 pour acc\u00e9l\u00e9rer le comptage des lignes. Avec cette optimisation, la vitesse de wc a \u00e9t\u00e9 multipli\u00e9e par 5.\n<li class=\"l\"> L'utilitaire cksum a ajout\u00e9 l'option &#171;-a&#187; (&#8212;algorithm) pour choisir l'algorithme de hachage. Pour acc\u00e9l\u00e9rer le calcul des sommes de contr\u00f4le dans l'utilitaire cksum, les instructions pclmul sont utilis\u00e9es lors de l'utilisation du mode &#171;&#8212;algorithm=crc&#187;, permettant d'acc\u00e9l\u00e9rer les calculs jusqu'\u00e0 8 fois. Sur les syst\u00e8mes sans prise en charge de pclmul, le mode crc est acc\u00e9l\u00e9r\u00e9 de 4 fois. Les autres algorithmes de hachage (sum, md5sum, b2sum, sha*sum, sm3, etc.) sont r\u00e9alis\u00e9s par l'appel des fonctions libcrypto.\n<li class=\"l\"> Dans les utilitaires md5sum, cksum, sha*sum et b2sum, l'utilisation du drapeau &#171;&#8212;check&#187; permet la pr\u00e9sence d'une s\u00e9quence CRLF \u00e0 la fin de la ligne avec la somme de contr\u00f4le. Dans &#171;cksum &#8212;check&#187;, la d\u00e9tection automatique de l'algorithme de hachage utilis\u00e9 est assur\u00e9e.\n<li class=\"l\"> Dans l'utilitaire ls, l'option &#171;&#8212;sort=width&#187; a \u00e9t\u00e9 ajout\u00e9e pour trier par la longueur du nom de fichier, ainsi que l'option &#171;&#8212;zero&#187; pour terminer chaque ligne par un caract\u00e8re nul. Le comportement ancien a \u00e9t\u00e9 restaur\u00e9, conduisant \u00e0 l'affichage d'un r\u00e9pertoire vide au lieu d'une erreur en cas de traitement d'un r\u00e9pertoire supprim\u00e9.\n<li class=\"l\"> L'utilitaire df a impl\u00e9ment\u00e9 la d\u00e9tection des syst\u00e8mes de fichiers r\u00e9seau acfs, coda, fhgfs, gpfs, ibrix, ocfs2 et vxfs.\n<li class=\"l\"> Les utilitaires stat et tail ont ajout\u00e9 la prise en charge des types de syst\u00e8mes de fichiers &#171;devmem&#187;, &#171;exfat&#187;, &#171;secretmem&#187;, &#171;vboxsf&#187; et &#171;zonefs&#187;. Pour &#171;vboxsf&#187;, le suivi des changements dans &#171;tail -f&#187; utilise le polling, tandis que pour les autres, c'est inotify.  <\/ul>\n<p>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55865\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043d\u0430\u0431\u043e\u0440\u0430 \u0431\u0430\u0437\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442 GNU Coreutils 9.0, \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u044f\u0442 \u0442\u0430\u043a\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b, \u043a\u0430\u043a sort, cat, chmod, chown, chroot, cp, date, dd, echo, hostname, id, ln, ls \u0438 \u0442.\u0434. \u0417\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u043c\u0435\u043d\u0430 \u043d\u043e\u043c\u0435\u0440\u0430 \u0432\u0435\u0440\u0441\u0438\u0438 \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u043b\u0438\u0447\u0438\u0435\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 \u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0412 \u0443\u0442\u0438\u043b\u0438\u0442\u0430\u0445 cp \u0438 install \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u0440\u0438 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d [&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-101398","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043d\u0430\u0431\u043e\u0440\u0430 \u0431\u0430\u0437\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0443\u0442\u0438\u043b\u0438\u0442 GNU Coreutils 9.0, \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u044f\u0442 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