{"id":6736,"date":"2023-10-18T19:24:19","date_gmt":"2023-10-18T22:24:19","guid":{"rendered":"https:\/\/4tuneagencia.digital\/blog\/barevny-a-formatovany-text-v-terminalu-abclinuxu\/"},"modified":"2023-10-18T19:24:19","modified_gmt":"2023-10-18T22:24:19","slug":"barevny-a-formatovany-text-v-terminalu-abclinuxu","status":"publish","type":"post","link":"https:\/\/4tuneagencia.digital\/blog\/barevny-a-formatovany-text-v-terminalu-abclinuxu\/","title":{"rendered":"Barevn\u00fd a form\u00e1tovan\u00fd text v termin\u00e1lu – AbcLinuxu"},"content":{"rendered":"

N\u00e1rodn\u00ed \u00fa\u0159ad pro kybernetickou a informa\u010dn\u00ed bezpe\u010dnost upozor\u0148uje na kritickou zranitelnost<\/a> CVE-2023-20198<\/a>, kter\u00e1 se t\u00fdk\u00e1 webov\u00e9ho rozhran\u00ed opera\u010dn\u00edho syst\u00e9mu Cisco IOS XE. Tato zranitelnost umo\u017e\u0148uje \u00fato\u010dn\u00edkovi vytvo\u0159it na napaden\u00e9m za\u0159\u00edzen\u00ed u\u017eivatelsk\u00fd \u00fa\u010det s \u00farovn\u00ed opr\u00e1vn\u011bn\u00ed “level 15” a z\u00edskat tak kontrolu nad napaden\u00fdm za\u0159\u00edzen\u00edm. Zranitelnost m\u00e1 CVSS Score 10 a je aktivn\u011b zneu\u017e\u00edv\u00e1na.
Byla vyd\u00e1na verze 6.8<\/a> softwaru pro spr\u00e1vu vlastn\u00edho cloudu OpenNebula<\/a> (Wikipedie<\/a>). K\u00f3dov\u00fd n\u00e1zev nov\u00e9 verze je Rosette. P\u0159ehled novinek v pozn\u00e1mk\u00e1ch k vyd\u00e1n\u00ed<\/a> v aktualizovan\u00e9 dokumentaci<\/a>.
Jak si \u010cesko stoj\u00ed v dostupnosti internetov\u00fdch s\u00edt\u00ed v porovn\u00e1n\u00ed s EU? Jak\u00e1 technologie p\u0159evl\u00e1d\u00e1?<\/a> Na konci z\u00e1\u0159\u00ed vydala Evropsk\u00e1 komise zpr\u00e1vu Broadbandov\u00e9 pokryt\u00ed 2022<\/a>, kter\u00e1 obsahuje srovn\u00e1n\u00ed rozvoje vysokorychlostn\u00edch s\u00edt\u00ed elektronick\u00fdch komunikac\u00ed mezi lety 2021 a 2022. Zpr\u00e1va slou\u017e\u00ed pro porovn\u00e1n\u00ed jednotliv\u00fdch \u010dlensk\u00fdch st\u00e1t\u016f p\u0159i pln\u011bn\u00ed c\u00edl\u016f stanoven\u00fdch v politick\u00e9m programu Digit\u00e1ln\u00ed dek\u00e1dy. Konkr\u00e9tn\u011b se jedn\u00e1 o c\u00edl \u201eGigabitov\u00e9 p\u0159ipojen\u00ed pro v\u0161echny do roku 2030\u201c a \u201ealespo\u0148 5G ve v\u0161ech obydlen\u00fdch oblastech\u201c.
Ben Sturmfels ozn\u00e1mil vyd\u00e1n\u00ed MediaGoblinu 0.13.0<\/a>. P\u0159ehled novinek v pozn\u00e1mk\u00e1ch k vyd\u00e1n\u00ed<\/a>. MediaGoblin<\/a> (Wikipedie<\/a>) je svobodn\u00e1 multimedi\u00e1ln\u00ed publika\u010dn\u00ed platforma a decentralizovan\u00e1 alternativa ke slu\u017eb\u00e1m jako Flickr, YouTube, SoundCloud atd. Uk\u00e1zka nap\u0159\u00edklad na LibrePlanet<\/a>.
Po\u010d\u00ednaje listopadem dojde k p\u0159ejmenov\u00e1n\u00ed \u00fa\u010dtu Firefoxu na \u00fa\u010det Mozilly<\/a>. Jedn\u00e1 se \u010dist\u011b o zm\u011bnu n\u00e1zvu a pro u\u017eivatele z toho neplynou \u017e\u00e1dn\u00e9 nutn\u00e9 akce. Jak popisuje vysv\u011btluj\u00edc\u00ed dokument<\/a>, p\u016fvodn\u011b byl \u00fa\u010det Firefoxu spojen se synchronizac\u00ed dat prohl\u00ed\u017ee\u010de, ale postupn\u011b se jeho pou\u017eit\u00ed roz\u0161\u00ed\u0159ilo na dal\u0161\u00ed produkty, jako je t\u0159eba Mozilla VPN \u010di Pocket. Z d\u016fvodu konzistence tak dojde k jeho p\u0159ejmenov\u00e1n\u00ed. Jedna \u201enekonzistentnost\u201c se zm\u011bnou v\u0161ak z\u016fstane. I nad\u00e1le toti\u017e bude \u00fa\u010det dostupn\u00fd na adrese accounts.firefox.com<\/a>.
Linux na Arduinu Uno R3 na portu emul\u00e1toru mini-rv32ima pro ATmega328P<\/a> aneb Linux na nejhor\u0161\u00edm mo\u017en\u00e9m linuxov\u00e9m po\u010d\u00edta\u010di. Z\u00e1znam bootov\u00e1n\u00ed Linuxu 6.1 na YouTube<\/a>.
OpenJS Foundation, ofici\u00e1ln\u00ed projekt<\/a> konsorcia Linux Foundation, ozn\u00e1mila vyd\u00e1n\u00ed<\/a> verze 21<\/a> otev\u0159en\u00e9ho multiplatformn\u00edho prost\u0159ed\u00ed pro v\u00fdvoj a b\u011bh s\u00ed\u0165ov\u00fdch aplikac\u00ed napsan\u00fdch v JavaScriptu Node.js<\/a> (Wikipedie<\/a>). P\u0159\u00ed\u0161t\u00ed t\u00fdden se p\u0159edchoz\u00ed verze 20 stane aktivn\u00ed LTS verz\u00ed<\/a>.
N\u00e1rodn\u00ed \u00fa\u0159ad pro kybernetickou a informa\u010dn\u00ed bezpe\u010dnost (N\u00daKIB) zve\u0159ejnil<\/a> s Agenturou pro kybernetickou a infrastrukturn\u00ed bezpe\u010dnost (CISA), Feder\u00e1ln\u00edm \u00fa\u0159adem pro vy\u0161et\u0159ov\u00e1n\u00ed (FBI), N\u00e1rodn\u00ed bezpe\u010dnost\u00ed agenturou (NSA) a dal\u0161\u00edmi mezin\u00e1rodn\u00edmi partnery doporu\u010duj\u00edc\u00ed dokument nazvan\u00fd Shifting the Balance of Cybersecurity Risk: Principles and Approaches for Secure by Design Software<\/a> (pdf<\/a>), kter\u00fd se soust\u0159ed\u00ed na principy vedouc\u00ed k
Bezplatn\u00fd online grafick\u00fd editor Photopea<\/a> (Wikipedie<\/a>) m\u00e1 vektorovou sestru jm\u00e9nem Vectorpea<\/a>. P\u0159edstavena byla prvn\u00ed verze (X<\/a>, Facebook<\/a>).
Ubuntu 23.10<\/a> s k\u00f3dov\u00fdm n\u00e1zvem Mantic Minotaur je op\u011bt ke sta\u017een\u00ed<\/a> jako Ubuntu 23.10.1. Ur\u00e1\u017eliv\u00e9 texty<\/a> byly z instal\u00e1toru odstran\u011bny.
4. 3. 2010 | David Watzke<\/a> | N\u00e1vody<\/a> | 16757×
V\u011bt\u0161ina un*xov\u00fdch emul\u00e1tor\u016f termin\u00e1lu podporuje \u0159\u00edd\u00edc\u00ed (escape) sekvence ANSI, kter\u00e9 slou\u017e\u00ed (mimo jin\u00e9) k form\u00e1tov\u00e1n\u00ed v\u00fdstupu na textov\u00fdch termin\u00e1lech.
Nejd\u0159\u00edve si pov\u00edme n\u011bco k teorii a pak si uk\u00e1\u017eeme uk\u00e1zky k\u00f3du v r\u016fzn\u00fdch programovac\u00edch jazyc\u00edch. Tato z\u00e1le\u017eitost nen\u00ed multiplatformn\u00ed a na Windows je t\u0159eba postupovat trochu jinak ne\u017e na Linuxu a jin\u00fdch unixov\u00fdch syst\u00e9mech. Ne ka\u017ed\u00fd emul\u00e1tor termin\u00e1lu m\u00e1 implementov\u00e1nu podporu v\u0161ech standardizovan\u00fdch vlastnost\u00ed a aby toho nebylo m\u00e1lo, n\u011bkter\u00e9 vlastnosti dokonce v r\u016fzn\u00fdch termin\u00e1lech d\u011blaj\u00ed r\u016fzn\u00e9 v\u011bci. To v\u00e1m douf\u00e1m posta\u010d\u00ed jako p\u00e1dn\u00fd d\u016fvod k tomu, abyste v p\u0159\u00edpad\u011b, \u017ee pou\u017eijete form\u00e1tov\u00e1n\u00ed ve sv\u00e9m programu, nezapomn\u011bli i na mo\u017enost form\u00e1tov\u00e1n\u00ed \u00fapln\u011b vypnout.
Snad jsem v\u00e1s je\u0161t\u011b neodradil. V praxi to nen\u00ed a\u017e tak hrozn\u00e9. V\u011bt\u0161inou budete cht\u00edt z\u0159ejm\u011b pou\u017e\u00edvat jen z\u00e1kladn\u00ed mo\u017enosti form\u00e1tov\u00e1n\u00ed textu a s t\u011bmi nen\u00ed \u017e\u00e1dn\u00fd probl\u00e9m na hojn\u011b pou\u017e\u00edvan\u00fdch emul\u00e1torech termin\u00e1lu.
Tak\u017ee jak na to? Escapovac\u00ed sekvence se tomu ne\u0159\u00edk\u00e1 jen tak pro nic za nic, escape je toti\u017e znak, kter\u00fd tyto \u0159\u00edd\u00edc\u00ed sekvence zahajuje. Tedy je\u0161t\u011b spolu se znakem \u201e[\u201c, kter\u00fd jej mus\u00ed n\u00e1sledovat. T\u00e9to sekvenci znak\u016f se \u0159\u00edk\u00e1 zkratkou CSI, a to znamen\u00e1 Control Sequence Introducer\/Initiator<\/em> – \u010desky inici\u00e1tor \u0159\u00edd\u00edc\u00ed sekvence<\/em>. Za touto sekvenc\u00ed n\u00e1sleduje samotn\u00fd p\u0159\u00edkaz. My se v tomto \u010dl\u00e1nku budeme zab\u00fdvat pouze p\u0159\u00edkazem ovliv\u0148uj\u00edc\u00edm zobrazen\u00ed textu na termin\u00e1lu. Jeho p\u0159edpis vypad\u00e1 takto:
Mezery jsou v p\u0159edpisu pouze pro p\u0159ehlednost a hranat\u00e1 z\u00e1vorka zna\u010d\u00ed volitelnost. A co to znamen\u00e1? CSI<\/tt> je zmi\u0148ovan\u00e1 zahajovac\u00ed sekvence, tedy ESC+[<\/code>. P\u00edsmena \u201ea\u201c a \u201eb\u201c jsou parametry, kter\u00e9 nahrad\u00edme za \u010d\u00edsla. Za jak\u00e1? To z\u00e1le\u017e\u00ed na tom, co od p\u0159\u00edkazu o\u010dek\u00e1v\u00e1te. Mo\u017enosti jsou vypsan\u00e9 v tabulce n\u00ed\u017ee. Za parametry je t\u0159eba d\u00e1t p\u00edsmeno \u201em\u201c tak, jak je.
A te\u010f kdy\u017e kone\u010dn\u011b prozrad\u00edm, jak napsat znak escape, tak si to budeme moci p\u0159edv\u00e9st. M\u00e1te t\u0159i mo\u017enosti, jak napsat escape, bu\u010f \u000033<\/code> (um\u00edst\u011bn\u00ed znaku escape v ASCII tabulce zaps\u00e1no v osmi\u010dkov\u00e9 soustav\u011b je 33), x1b<\/code> (um\u00edst\u011bn\u00ed znaku v ASCII tabulce zaps\u00e1no v \u0161estn\u00e1ctkov\u00e9 soustav\u011b je 1B) nebo e<\/code> (styl jazyka C), co\u017e je nestandardn\u00ed (a n\u011bkde nepodporovan\u00fd), ale pom\u011brn\u011b roz\u0161\u00ed\u0159en\u00fd z\u00e1pis (dostupn\u00fd nejen v C).
Jak je vid\u011bt, v tomto p\u0159\u00edpad\u011b pou\u017e\u00edv\u00e1me pouze parametr \u201ea\u201c (z p\u0159edpisu v\u00fd\u0161e). Kdy\u017e pou\u017eijeme z\u00e1rove\u0148 i parametr \u201eb\u201c, m\u016f\u017eeme nastavit dv\u011b atributy najednou stylem \u201ea;b\u201c, tak\u017ee to pak cel\u00e9 vypad\u00e1 takto: \u000033[a<\/b>;b<\/b>m<\/code>, p\u0159i\u010dem\u017e za \u201ea\u201c a \u201eb\u201c dosad\u00edme \u010d\u00edseln\u00e9 hodnoty. N\u00e1sleduje v\u00fdb\u011br ze seznamu mo\u017en\u00fdch hodnot parametr\u016f:
U v\u00fd\u0161e zm\u00edn\u011bn\u00fdch rozsah\u016f hodnot nen\u00ed jasn\u00e9, kter\u00e1 hodnota n\u00e1le\u017e\u00ed kter\u00e9 barv\u011b. Proto n\u00e1sleduje tabulka barev:
P\u0159id\u00e1m je\u0161t\u011b n\u011bkolik uk\u00e1zkov\u00fdch parametr\u016f, abyste si mohli ov\u011b\u0159it, \u017ee to cel\u00e9 ch\u00e1pete spr\u00e1vn\u011b:
Uk\u00e1zkov\u00e9 sekvence s ob\u011bma parametry:
Pozn\u00e1mka<\/b>: Nikdy nezapom\u00ednejte ukon\u010dovat form\u00e1tov\u00e1n\u00ed pomoc\u00ed \u000033[0<\/b>m<\/code>.
Nyn\u00ed p\u0159ejdeme k uk\u00e1zk\u00e1m z praxe.
V Bashi lze barevn\u00fd text vypisovat pomoc\u00ed p\u0159\u00edkazu echo<\/a> s p\u0159ep\u00edna\u010dem -e<\/tt>.
\"barvy<\/a> \"barvy<\/a>
V Pythonu m\u016f\u017eete pou\u017e\u00edt funkci print()<\/tt>.
V Perlu lze tak\u00e9 pou\u017e\u00edt funkci print()<\/tt>.
PuTTY na Symbianu je uk\u00e1zkou toho, \u017ee ne v\u0161ude v\u0161echny atributy funguj\u00ed. (Tu\u010dn\u00fd text se zobraz\u00ed jako norm\u00e1ln\u00ed.)
\"barvy
Lze pou\u017e\u00edt funkce printf()<\/tt> z C nebo std::cout<\/tt> z C++.
N\u00e1stroje<\/b>: Tisk bez diskuse<\/a>
Tiskni<\/a> Sd\u00edlej: \"Linkuj\"<\/a> \"Jaggni<\/a> \"Vybrali.sme.sk\"<\/a> \"Google\"<\/a> \"Del.icio.us\"<\/a> \"Facebook\"<\/a> <\/span>
Vlo\u017eit dal\u0161\u00ed koment\u00e1\u0159 <\/a> <\/p>\n

Zalo\u017eit nov\u00e9 vl\u00e1kno<\/a> • Nahoru<\/a> <\/p>\n

source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

N\u00e1rodn\u00ed \u00fa\u0159ad pro kybernetickou a informa\u010dn\u00ed bezpe\u010dnost upozor\u0148uje na kritickou zranitelnost CVE-2023-20198, kter\u00e1 se t\u00fdk\u00e1 webov\u00e9ho rozhran\u00ed opera\u010dn\u00edho syst\u00e9mu Cisco IOS XE. Tato zranitelnost umo\u017e\u0148uje \u00fato\u010dn\u00edkovi vytvo\u0159it na napaden\u00e9m za\u0159\u00edzen\u00ed u\u017eivatelsk\u00fd \u00fa\u010det s \u00farovn\u00ed opr\u00e1vn\u011bn\u00ed “level 15” a z\u00edskat tak kontrolu nad napaden\u00fdm za\u0159\u00edzen\u00edm. Zranitelnost m\u00e1 CVSS Score 10 a je aktivn\u011b zneu\u017e\u00edv\u00e1na.Byla vyd\u00e1na verze…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[70],"class_list":["post-6736","post","type-post","status-publish","format-standard","hentry","category-design","tag-designer"],"yoast_head":"\nBarevn\u00fd a form\u00e1tovan\u00fd text v termin\u00e1lu - AbcLinuxu - 4tuneagencia.digital<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/4tuneagencia.digital\/blog\/barevny-a-formatovany-text-v-terminalu-abclinuxu\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Barevn\u00fd a form\u00e1tovan\u00fd text v termin\u00e1lu - AbcLinuxu\" \/>\n<meta property=\"og:description\" content=\"N\u00e1rodn\u00ed \u00fa\u0159ad pro kybernetickou a informa\u010dn\u00ed bezpe\u010dnost upozor\u0148uje na kritickou zranitelnost CVE-2023-20198, kter\u00e1 se t\u00fdk\u00e1 webov\u00e9ho rozhran\u00ed opera\u010dn\u00edho syst\u00e9mu Cisco IOS XE. 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