{"id":2,"date":"2026-03-26T13:31:14","date_gmt":"2026-03-26T12:31:14","guid":{"rendered":"https:\/\/it2508.sspu-opava.eu\/?page_id=2"},"modified":"2026-06-15T19:42:20","modified_gmt":"2026-06-15T17:42:20","slug":"main-page","status":"publish","type":"page","link":"https:\/\/it2508.sspu-opava.eu\/","title":{"rendered":"Syst\u00e9mov\u00e9 programov\u00e1n\u00ed pro blbe\u010dky"},"content":{"rendered":"\t\t
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\n\t\t\t\t\t\t\t\t\tAhoj! V\u00edtej na m\u00edst\u011b, kde strhneme oponu z tajupln\u00e9ho sv\u011bta syst\u00e9mov\u00e9ho programov\u00e1n\u00ed v Linuxu<\/strong>.\n\nMo\u017en\u00e1 ti n\u011bkdo tvrdil, \u017ee abys mohl ps\u00e1t k\u00f3d, kter\u00fd komunikuje p\u0159\u00edmo s opera\u010dn\u00edm syst\u00e9mem, mus\u00ed\u0161 m\u00edt plnovous, p\u00edt kafe z litrov\u00e9ho hrnku s logem Debianu a mluvit v assembleru. Blbost. Syst\u00e9mov\u00e9 programov\u00e1n\u00ed je sice \u0159emeslo, kter\u00e9 vy\u017eaduje p\u0159esnost, ale z\u00e1klady pochop\u00ed \u00fapln\u011b ka\u017ed\u00fd. A p\u0159esn\u011b od toho je tu tahle s\u00e9rie.\n\n

O \u010dem to sakra je?<\/h2>\nKdy\u017e p\u00ed\u0161e\u0161 b\u011b\u017enou aplikaci (t\u0159eba web nebo mobiln\u00ed hru), jsi schovan\u00fd v bezpe\u010dn\u00e9 bublin\u011b. Jazyky jako Python nebo JavaScript za tebe \u0159e\u0161\u00ed v\u0161echno \u0161pinav\u00e9 na pozad\u00ed.\n\nSyst\u00e9mov\u00e9 programov\u00e1n\u00ed znamen\u00e1, \u017ee tu bublinu praskneme. Budeme ps\u00e1t k\u00f3d, kter\u00fd sah\u00e1 p\u0159\u00edmo na \u017eelezo a na syst\u00e9mov\u00e1 vol\u00e1n\u00ed (syscalls) Linuxu.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Syst\u00e9mov\u00fd program\u00e1to\u0159i v roce 2026<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Co se v t\u00e9to s\u00e9rii nau\u010d\u00ed\u0161?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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T\u00e9ma<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Co si z toho odnese\u0161?*<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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1. Pr\u00e1ce s procesy<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Nau\u010d\u00ed\u0161 se klonovat procesy a donut\u00ed\u0161 procesor d\u011blat deset v\u011bc\u00ed nar\u00e1z.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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2. Souborov\u00fd syst\u00e9m<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Zjist\u00ed\u0161 rozd\u00edl mezi slo\u017ekou a souborem. Rozbije\u0161 v\u0161echny odkazy v syst\u00e9mu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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3. Pr\u00e1ce se soubory<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Zapome\u0148 na b\u011b\u017en\u00e9 ukl\u00e1d\u00e1n\u00ed textu. Pod\u00edv\u00e1me se, jak Linux vid\u00ed v\u0161echno jako soubor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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4. Za\u0159\u00edzen\u00ed<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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P\u0159ep\u00ed\u0161e\u0161 sv\u016fj disk na nuly a zjist\u00ed\u0161 jak kr\u00e1st hesla z termin\u00e1l\u016f.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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5. Virtu\u00e1ln\u00ed souborov\u00e9 syst\u00e9my<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Tv\u00e1 pen\u011b\u017eenka bude bre\u010det a\u017e zjist\u00ed\u0161 p\u0159esnou spot\u0159ebu tv\u00fdho kompu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t*V\u0161echny upout\u00e1vky byly vygenerov\u00e1ny pomoc\u00ed gemini ve 2:00 r\u00e1no, pravd\u011bpodobnost pravdivost se bl\u00ed\u017e\u00ed nule\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Pro koho to NEN\u00cd a pro koho TO JE?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \n \t
  • NEN\u00cd TO<\/strong> pro \u00fapln\u00e9 program\u00e1torsk\u00e9 nuly. Pokud netu\u0161\u00ed\u0161, co je to cyklus for<\/code> nebo prom\u011bnn\u00e1, nejd\u0159\u00edv si dej rychlokurz jak\u00e9hokoliv jazyka.<\/li>\n \t
  • NEN\u00cd TO<\/strong> nudn\u00e1 akademick\u00e1 p\u0159\u00edru\u010dka pln\u00e1 such\u00e9 teorie a matematick\u00fdch definic. (mo\u017en\u00e1)<\/li>\n \t
  • JE TO<\/strong> pro lidi, co u\u017e um\u00ed trochu k\u00f3dovat, ale cht\u011bj\u00ed v\u011bd\u011bt, JAK<\/strong> ty v\u011bci uvnit\u0159 po\u010d\u00edta\u010de doopravdy funguj\u00ed.<\/li>\n \t
  • JE TO<\/strong> psan\u00e9 lidsky, s humorem a hromadou praktick\u00fdch (a ob\u010das schv\u00e1ln\u011b rozbit\u00fdch) uk\u00e1zek.**<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \n\t\t\t\t\t\t\t\t\t**To byla le\u017e\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Co bude\u0161 pot\u0159ebovat do za\u010d\u00e1tku?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      \n \t
    • Po\u010d\u00edta\u010d s Linuxem<\/strong> (Ubuntu<\/s>, Fedora, Arch \u2013 cokoliv, klidn\u011b i WSL2 ve Windows).<\/li>\n \t
    • Termin\u00e1l<\/strong> (tv\u016fj nov\u00fd nejlep\u0161\u00ed kamar\u00e1d).<\/li>\n \t
    • Textov\u00fd editor<\/strong> (VS Code<\/s>, Vim, Nano \u2013 je n\u00e1m to jedno, hlavn\u011b kdy\u017e v tom um\u00ed\u0161 ps\u00e1t).<\/li>\n \t
    • Trochu odvahy<\/strong> neb\u00e1t se chybov\u00fdch hl\u00e1\u0161ek.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      Zlat\u00e9 pravidlo t\u00e9to s\u00e9rie:<\/strong> Nejv\u00edc se nau\u010d\u00ed\u0161, kdy\u017e tv\u016fj k\u00f3d po\u0161le opera\u010dn\u00ed syst\u00e9m do h\u00e1je. Chybami se \u010dlov\u011bk u\u010d\u00ed a v syst\u00e9mov\u00e9m programov\u00e1n\u00ed to plat\u00ed dvojn\u00e1sob!<\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

      Ahoj! V\u00edtej na m\u00edst\u011b, kde strhneme oponu z tajupln\u00e9ho sv\u011bta syst\u00e9mov\u00e9ho programov\u00e1n\u00ed v Linuxu. Mo\u017en\u00e1 ti n\u011bkdo tvrdil, \u017ee abys mohl ps\u00e1t k\u00f3d, kter\u00fd komunikuje p\u0159\u00edmo s opera\u010dn\u00edm syst\u00e9mem, mus\u00ed\u0161 m\u00edt plnovous, p\u00edt kafe z litrov\u00e9ho hrnku s logem Debianu a mluvit v assembleru. Blbost. Syst\u00e9mov\u00e9 programov\u00e1n\u00ed je sice \u0159emeslo, kter\u00e9 vy\u017eaduje p\u0159esnost, ale z\u00e1klady […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-2","page","type-page","status-publish","hentry"],"yoast_head":"\nSyst\u00e9mov\u00e9 programov\u00e1n\u00ed pro blbe\u010dky -<\/title>\n<meta name=\"description\" content=\"Main Page, Operating Systems Programming Guide, Opera\u010dn\u00ed syst\u00e9my, Programov\u00e1n\u00ed, Blog, S\u00e9rie, V\u00fdukov\u00e1 str\u00e1nka\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/it2508.sspu-opava.eu\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Syst\u00e9mov\u00e9 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