{"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\/cs\/blog\/news\/vypusk-nabora-bazovyh-sistemnyh-utilit-gnu-coreutils-9-0","title":{"rendered":"Vyd\u00e1n\u00ed sady z\u00e1kladn\u00edch syst\u00e9mov\u00fdch utilit GNU Coreutils 9.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Stabiln\u00ed verze sady z\u00e1kladn\u00edch syst\u00e9mov\u00fdch utilit GNU Coreutils 9.0 je nyn\u00ed k dispozici, zahrnuje programy jako sort, cat, chmod, chown, chroot, cp, date, dd, echo, hostname, id, ln, ls atd. V\u00fdznamn\u00e1 zm\u011bna \u010d\u00edsla verze je d\u00e1na zm\u011bnami v chov\u00e1n\u00ed n\u011bkter\u00fdch utilit.    <\/p>\n<p>Kl\u00ed\u010dov\u00e9 zm\u011bny:  <\/p>\n<ul>\n<li class=\"l\"> Ve utilit\u00e1ch cp a install je p\u0159i kop\u00edrov\u00e1n\u00ed ve v\u00fdchoz\u00edm nastaven\u00ed pou\u017eit re\u017eim copy-on-write (vyu\u017e\u00edvaj\u00edc\u00ed ioctl ficlone pro sd\u00edlen\u00ed dat mezi v\u00edce soubory nam\u00edsto vytvo\u0159en\u00ed \u00fapln\u00e9ho klonu).\n<li class=\"l\"> Ve utilit\u00e1ch cp, install a mv jsou vyu\u017e\u00edv\u00e1ny syst\u00e9mem poskytovan\u00e9 mechanismy pro zrychlen\u00ed operac\u00ed kop\u00edrov\u00e1n\u00ed (vyu\u017e\u00edvaj\u00edc\u00ed syst\u00e9mov\u00fd vol\u00e1n\u00ed copy_file_range k prov\u00e1d\u011bn\u00ed kop\u00edrov\u00e1n\u00ed pouze na stran\u011b j\u00e1dra bez p\u0159ed\u00e1v\u00e1n\u00ed dat do pam\u011bti procesu v adresn\u00edm prostoru u\u017eivatele).\n<li class=\"l\"> Ve utilit\u00e1ch cp, install a mv je pro ur\u010den\u00ed pr\u00e1zdn\u00fdch m\u00edst v souborech pou\u017eit jednodu\u0161\u0161\u00ed a p\u0159enosn\u00fd vol\u00e1n\u00ed lseek+SEEK_HOLE m\u00edsto ioctl+FS_IOC_FIEMAP.\n<li class=\"l\"> Ve utilit\u011b wc jsou pro zrychlen\u00ed po\u010d\u00edt\u00e1n\u00ed \u0159\u00e1dk\u016f vyu\u017e\u00edv\u00e1ny instrukce AVX2. P\u0159i pou\u017eit\u00ed t\u00e9to optimalizace se rychlost wc zv\u00fd\u0161ila 5kr\u00e1t.\n<li class=\"l\"> Do utility cksum byla p\u0159id\u00e1na mo\u017enost &#171;-a&#187; (&#8212;algorithm) pro v\u00fdb\u011br hashovac\u00edho algoritmu. Pro zrychlen\u00ed v\u00fdpo\u010dtu kontroln\u00edch sou\u010dt\u016f v utilit\u011b cksum jsou vyu\u017eity instrukce pclmul p\u0159i pou\u017eit\u00ed re\u017eimu &#171;&#8212;algorithm=crc&#187;, co\u017e umo\u017enilo zrychlit v\u00fdpo\u010dty a\u017e 8kr\u00e1t. Na syst\u00e9mech bez podpory pclmul je re\u017eim crc zrychlen 4kr\u00e1t. Ostatn\u00ed hashovac\u00ed algoritmy (sum, md5sum, b2sum, sha*sum, sm3 atd.) jsou implementov\u00e1ny vol\u00e1n\u00edm funkc\u00ed libcrypto.\n<li class=\"l\"> V utilit\u00e1ch md5sum, cksum, sha*sum a b2sum p\u0159i pou\u017eit\u00ed p\u0159ep\u00edna\u010de &#171;&#8212;check&#187; je povolena p\u0159\u00edtomnost sekvence CRLF na konci \u0159\u00e1dku s kontroln\u00edm sou\u010dtem. V &#171;cksum &#8212;check&#187; je zaji\u0161t\u011bno automatick\u00e9 ur\u010den\u00ed pou\u017eit\u00e9ho hashovac\u00edho algoritmu.\n<li class=\"l\"> Do utilit\u011b ls byla p\u0159id\u00e1na mo\u017enost &#171;&#8212;sort=width&#187; pro \u0159azen\u00ed podle d\u00e9lky n\u00e1zvu souboru, stejn\u011b jako mo\u017enost &#171;&#8212;zero&#187; pro ukon\u010den\u00ed ka\u017ed\u00e9ho \u0159\u00e1dku nulov\u00fdm znakem. Bylo vr\u00e1ceno star\u00e9 chov\u00e1n\u00ed, co\u017e vede k zobrazen\u00ed pr\u00e1zdn\u00e9ho adres\u00e1\u0159e m\u00edsto chyby p\u0159i zpracov\u00e1n\u00ed odstran\u011bn\u00e9ho adres\u00e1\u0159e.\n<li class=\"l\"> V utilit\u011b df bylo implementov\u00e1no ur\u010dov\u00e1n\u00ed s\u00ed\u0165ov\u00fdch souborov\u00fdch syst\u00e9m\u016f acfs, coda, fhgfs, gpfs, ibrix, ocfs2 a vxfs.\n<li class=\"l\"> Do utilit stat a tail byla p\u0159id\u00e1na podpora typ\u016f FS &#171;devmem&#187;, &#171;exfat&#187;, &#171;secretmem&#187;, &#171;vboxsf&#187; a &#171;zonefs&#187;. Pro &#171;vboxsf&#187; je pro sledov\u00e1n\u00ed zm\u011bn v &#171;tail -f&#187; pou\u017eito polling, a pro ostatn\u00ed je pou\u017eito inotify.  <\/ul>\n<p>Zdroj: <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 5.0.3 - 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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