{"id":4257,"date":"2020-10-30T21:24:57","date_gmt":"2020-10-30T20:24:57","guid":{"rendered":"https:\/\/webhosting.de\/?p=4257"},"modified":"2020-10-30T21:24:57","modified_gmt":"2020-10-30T20:24:57","slug":"perl-practical-extraction-and-report-language","status":"publish","type":"post","link":"https:\/\/webhosting.de\/sv\/perl-practical-extraction-and-report-language\/","title":{"rendered":"Perl"},"content":{"rendered":"<p>Programmeraren och f\u00f6rfattaren till Perl, som \u00e4r s\u00e5 viktigt idag, \u00e4r Larry Wall. Han letade efter en l\u00f6sning som skulle g\u00f6ra det l\u00e4ttare att programmera kommandon p\u00e5 spr\u00e5ket. Detta visar sig i enkla s\u00f6k- och ers\u00e4ttningsoperationer som utf\u00f6rs i redigeringsverktyget. Perl \u00e4r en syntes av programmeringsspr\u00e5ket C och UNIX-funktionerna sed och awk. P\u00e5 s\u00e5 s\u00e4tt blev v\u00e4rlden av programmeringsspr\u00e5k enklare.<\/p>\n<h2>Vad \u00e4r Perl?<\/h2>\n<p>Alla program som skrivs med Perl-programmet sparas som ASCII-filer. Detta liknar ett skalskript. Dessa filer \u00f6vers\u00e4tts sedan f\u00f6re den f\u00f6rsta exekveringen. Programmen \u00e4r d\u00e4rmed l\u00e4tta att redigera och samtidigt \u00f6verf\u00f6ra till andra datorer. Perl erbjuder en h\u00f6g hastighet f\u00f6r s\u00f6kfunktioner. Enligt Artistic License under GPL (GNU Public License) \u00e4r Perl med k\u00e4llkoder fritt tillg\u00e4ngligt f\u00f6r alla. P\u00e5 vissa datorer med UIX eller <a href=\"https:\/\/webhosting.de\/sv\/windows-vs-linux-hosting-a-comparison-of-advantages-and-disadvantages\/\">Linux-system<\/a> Programmet \u00e4r redan f\u00f6rinstallerat. Perl finns under s\u00f6kv\u00e4gen \/usr\/local\/bin\/perl eller under den andra s\u00f6kv\u00e4gen \/usr\/bin\/perl. Vissa portar finns ocks\u00e5 f\u00f6r operativsystemen IOS f\u00f6r Macbooks eller Windows. Alla funktioner \u00e4r dock endast tillg\u00e4ngliga f\u00f6r icke-UNIX-system. 2012 \u00e5rs stat har lanserat den stabila versionen Perl 5.12.2. F\u00f6r att ta reda p\u00e5 numret p\u00e5 den installerade versionen av Perl, som finns p\u00e5 datorn, kan du hitta det under \"perl-v\". Vissa saker kan redan anses vara f\u00f6r\u00e5ldrade, eftersom handledningen skrevs fr\u00e5n Perl 5.005 eller Perl 5.6.0. Men alla Perl-versioner k\u00f6rs p\u00e5 nyare versioner av Perl-tolkar p\u00e5 grund av deras kompatibilitet.<\/p>\n<h3>Perl - Det nya programmet - Hur fungerar det?<\/h3>\n<p>Programmet skrivs i en textredigerare och sparas som en textfil. Perl fungerar inte i en textredigerare eftersom <a href=\"https:\/\/webhosting.de\/sv\/die-5-elemente-einer-guten-landing-page\/\">Text<\/a> filen sparas i ASCII-kod. I UNIX- och Linux-operativsystemen b\u00f6r man se till att biten execute \u00e4r inst\u00e4lld i filen. P\u00e5 s\u00e5 s\u00e4tt kan du anropa Perl-programmen direkt. Detta fungerar med chmod u+x skript.pl. P\u00e5 kommandoraden anropas sedan perl skript.pl. En annan m\u00f6jlighet \u00e4r att skriva skript.pl p\u00e5 kommandoraden. Om det finns problem med den f\u00f6rsta s\u00f6kv\u00e4gen, t.ex. om k\u00f6rbara program inte s\u00f6ks, \u00e4r den andra s\u00f6kv\u00e4gen alltid framg\u00e5ngsrik. Den f\u00f6rsta raden som visas f\u00f6r dig b\u00f6rjar alltid med en hash, dvs. #. Denna hash m\u00e5ste noteras som en kommentar av Perl, annars har den ingen funktion. Den f\u00f6rsta raden g\u00e4ller f\u00f6r <a href=\"https:\/\/webhosting.de\/sv\/aws-cloud-erhaelt-shell-zugriff-per-browser\/\">Shell<\/a> f\u00f6r att visa att det \u00e4r perlprogrammet och inte skalskriptet. Stigen visar var perl installerades i systemet. Det \u00e4r alltid tillr\u00e5dligt att ange ett -w i s\u00f6kv\u00e4gen, eftersom det ger m\u00f6jlighet till omfattande meddelanden. Den sista raden visar utskriftsfunktionen. Den h\u00e4r funktionen visar en teckenstr\u00e4ng som skrivs ut p\u00e5 sk\u00e4rmen. Kommandon m\u00e5ste alltid avslutas med ett semikolon \";\". Funktionsnamn m\u00e5ste vara skiftl\u00e4gesk\u00e4nsliga, annars uppst\u00e5r en felkod. Du kan ocks\u00e5 infoga ett valfritt antal tabulatorer och radmatningar p\u00e5 alla st\u00e4llen d\u00e4r ett mellanslag kan placeras. Kommentarer ska m\u00e4rkas med #. Dessa g\u00e4ller fram till slutet av linjen.<\/p>\n<h3>Namn och olika versioner<\/h3>\n<p>Namnet p\u00e5 programmet kommer fr\u00e5n Bibeln. Jesus vill beskriva himmelriket med bilden av en k\u00f6pman. Han vill s\u00e4lja sina \u00e4godelar f\u00f6r att k\u00f6pa en p\u00e4rla. F\u00f6re den f\u00f6rsta publiceringen \u00e4ndrades namnet Peal till Perl, eftersom det redan fanns ett program som hette PEARL. Perl h\u00e4nvisar till spr\u00e5ket och perl till spr\u00e5ket. Perl-gemenskapen l\u00e4gger stor vikt vid att stavningen PERL inte anv\u00e4nds. Under tiden finns det olika versioner av programmet. Perl 1 sl\u00e4pptes den 18 december 1987 och var ett mer kraftfullt skal. Version 2.0 sl\u00e4pptes den 5 juni 1987 och hade skrivits om i grunden. Regexmotorn har ut\u00f6kats och f\u00f6rb\u00e4ttrats. Den 18 oktober 1989 f\u00f6ljde Perl 3-versionen. Detta kan sedan anv\u00e4ndas med bin\u00e4r <a href=\"https:\/\/webhosting.de\/sv\/personenbezogene-daten-sozialen-netzwerken\/\">Uppgifter<\/a> och skriva n\u00e4tverksprogrammering. Detta f\u00f6ljdes av Perl 4 den 21.03.1991. Det redigerades och utvecklades av olika programmerare tills 4.036 n\u00e5ddes. Larry Wall programmerade sedan Perl 5 1993. Denna version publicerades den 18.10.1994. Formaterad dokumentation kan nu infogas som k\u00e4llkod. Perl 5 anpassades sedan ocks\u00e5 till Windows och Macintosh. Perl 5.6 kunde hantera Unicodes och UTF-8 den 22.03.2000. Efter version 5.22 \u00e4r den nuvarande versionen Perl 6.<\/p>","protected":false},"excerpt":{"rendered":"<p>Der Programmierer und Autor des heute so wichtigen Programms Perl ist Larry Wall. Dieser hat eine L\u00f6sung gesucht, die die Sprachbefehle f\u00fcr Programmierbefehle einfacher macht. Dieses \u00e4u\u00dfert sich in leichten Such- und Ersetzungsoperationen, wie auf dem Editor ausgef\u00fchrt werden. Perl ist eine Synthese von der Programmiersprache C und den UNIX- Eigenschaften sed und awk. So [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1007,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_crdt_document":"","inline_featured_image":false,"footnotes":""},"categories":[732],"tags":[247,284,285],"class_list":["post-4257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lexikon","tag-lexikon","tag-perl","tag-scriptsprache"],"acf":[],"_wp_attached_file":null,"_wp_attachment_metadata":null,"litespeed-optimize-size":null,"litespeed-optimize-set":null,"_elementor_source_image_hash":null,"_wp_attachment_image_alt":null,"stockpack_author_name":null,"stockpack_author_url":null,"stockpack_provider":null,"stockpack_image_url":null,"stockpack_license":null,"stockpack_license_url":null,"stockpack_modification":null,"color":null,"original_id":null,"original_url":null,"original_link":null,"unsplash_location":null,"unsplash_sponsor":null,"unsplash_exif":null,"unsplash_attachment_metadata":null,"_elementor_is_screenshot":null,"surfer_file_name":null,"surfer_file_original_url":null,"envato_tk_source_kit":null,"envato_tk_source_index":null,"envato_tk_manifest":null,"envato_tk_folder_name":null,"envato_tk_builder":null,"envato_elements_download_event":null,"_menu_item_type":null,"_menu_item_menu_item_parent":null,"_menu_item_object_id":null,"_menu_item_object":null,"_menu_item_target":null,"_menu_item_classes":null,"_menu_item_xfn":null,"_menu_item_url":null,"_trp_menu_languages":null,"rank_math_primary_category":null,"rank_math_title":null,"inline_featured_image":null,"_yoast_wpseo_primary_category":null,"rank_math_schema_blogposting":null,"rank_math_schema_videoobject":null,"_oembed_049c719bc4a9f89deaead66a7da9fddc":null,"_oembed_time_049c719bc4a9f89deaead66a7da9fddc":null,"_yoast_wpseo_focuskw":"perl","_yoast_wpseo_linkdex":null,"_oembed_27e3473bf8bec795fbeb3a9d38489348":null,"_oembed_c3b0f6959478faf92a1f343d8f96b19e":null,"_trp_translated_slug_en_us":null,"_wp_desired_post_slug":null,"_yoast_wpseo_title":null,"tldname":null,"tldpreis":null,"tldrubrik":null,"tldpolicylink":null,"tldsize":null,"tldregistrierungsdauer":null,"tldtransfer":null,"tldwhoisprivacy":null,"tldregistrarchange":null,"tldregistrantchange":null,"tldwhoisupdate":null,"tldnameserverupdate":null,"tlddeletesofort":null,"tlddeleteexpire":null,"tldumlaute":null,"tldrestore":null,"tldsubcategory":null,"tldbildname":null,"tldbildurl":null,"tldclean":null,"tldcategory":null,"tldpolicy":null,"tldbesonderheiten":null,"tld_bedeutung":null,"_oembed_d167040d816d8f94c072940c8009f5f8":null,"_oembed_b0a0fa59ef14f8870da2c63f2027d064":null,"_oembed_4792fa4dfb2a8f09ab950a73b7f313ba":null,"_oembed_33ceb1fe54a8ab775d9410abf699878d":null,"_oembed_fd7014d14d919b45ec004937c0db9335":null,"_oembed_21a029d076783ec3e8042698c351bd7e":null,"_oembed_be5ea8a0c7b18e658f08cc571a909452":null,"_oembed_a9ca7a298b19f9b48ec5914e010294d2":null,"_oembed_f8db6b27d08a2bb1f920e7647808899a":null,"_oembed_168ebde5096e77d8a89326519af9e022":null,"_oembed_cdb76f1b345b42743edfe25481b6f98f":null,"_oembed_87b0613611ae54e86e8864265404b0a1":null,"_oembed_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_oembed_time_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_tldname":null,"_tldclean":null,"_tldpreis":null,"_tldcategory":null,"_tldsubcategory":null,"_tldpolicy":null,"_tldpolicylink":null,"_tldsize":null,"_tldregistrierungsdauer":null,"_tldtransfer":null,"_tldwhoisprivacy":null,"_tldregistrarchange":null,"_tldregistrantchange":null,"_tldwhoisupdate":null,"_tldnameserverupdate":null,"_tlddeletesofort":null,"_tlddeleteexpire":null,"_tldumlaute":null,"_tldrestore":null,"_tldbildname":null,"_tldbildurl":null,"_tld_bedeutung":null,"_tldbesonderheiten":null,"_oembed_ad96e4112edb9f8ffa35731d4098bc6b":null,"_oembed_8357e2b8a2575c74ed5978f262a10126":null,"_oembed_3d5fea5103dd0d22ec5d6a33eff7f863":null,"_eael_widget_elements":null,"_oembed_0d8a206f09633e3d62b95a15a4dd0487":null,"_oembed_time_0d8a206f09633e3d62b95a15a4dd0487":null,"_aioseo_description":null,"_eb_attr":null,"_eb_data_table":null,"_oembed_819a879e7da16dd629cfd15a97334c8a":null,"_oembed_time_819a879e7da16dd629cfd15a97334c8a":null,"_acf_changed":null,"_wpcode_auto_insert":null,"_edit_last":null,"_edit_lock":null,"_oembed_e7b913c6c84084ed9702cb4feb012ddd":null,"_oembed_bfde9e10f59a17b85fc8917fa7edf782":null,"_oembed_time_bfde9e10f59a17b85fc8917fa7edf782":null,"_oembed_03514b67990db061d7c4672de26dc514":null,"_oembed_time_03514b67990db061d7c4672de26dc514":null,"rank_math_news_sitemap_robots":"index","rank_math_robots":["index"],"_eael_post_view_count":"4178","_trp_automatically_translated_slug_ru_ru":null,"_trp_automatically_translated_slug_et":"perl-practical-extraction-and-report-language","_trp_automatically_translated_slug_lv":"perl-practical-extraction-and-report-language","_trp_automatically_translated_slug_fr_fr":null,"_trp_automatically_translated_slug_en_us":null,"_wp_old_slug":null,"_trp_automatically_translated_slug_da_dk":null,"_trp_automatically_translated_slug_pl_pl":null,"_trp_automatically_translated_slug_es_es":null,"_trp_automatically_translated_slug_hu_hu":null,"_trp_automatically_translated_slug_fi":"perl-practical-extraction-and-report-language","_trp_automatically_translated_slug_ja":"perl%e5%ae%9f%e7%94%a8%e7%9a%84%e3%81%aa%e6%8a%bd%e5%87%ba%e3%83%ac%e3%83%9d%e3%83%bc%e3%83%88%e8%a8%80%e8%aa%9e","_trp_automatically_translated_slug_lt_lt":null,"_elementor_edit_mode":null,"_elementor_template_type":null,"_elementor_version":null,"_elementor_pro_version":null,"_wp_page_template":"default","_elementor_page_settings":null,"_elementor_data":null,"_elementor_css":null,"_elementor_conditions":null,"_happyaddons_elements_cache":null,"_oembed_75446120c39305f0da0ccd147f6de9cb":null,"_oembed_time_75446120c39305f0da0ccd147f6de9cb":null,"_oembed_3efb2c3e76a18143e7207993a2a6939a":null,"_oembed_time_3efb2c3e76a18143e7207993a2a6939a":null,"_oembed_59808117857ddf57e478a31d79f76e4d":null,"_oembed_time_59808117857ddf57e478a31d79f76e4d":null,"_oembed_965c5b49aa8d22ce37dfb3bde0268600":null,"_oembed_time_965c5b49aa8d22ce37dfb3bde0268600":null,"_oembed_81002f7ee3604f645db4ebcfd1912acf":null,"_oembed_time_81002f7ee3604f645db4ebcfd1912acf":null,"_elementor_screenshot":null,"_oembed_7ea3429961cf98fa85da9747683af827":null,"_oembed_time_7ea3429961cf98fa85da9747683af827":null,"_elementor_controls_usage":null,"_elementor_page_assets":[],"_elementor_screenshot_failed":null,"theplus_transient_widgets":["tp-video-player"],"_eael_custom_js":null,"_wp_old_date":null,"_trp_automatically_translated_slug_it_it":null,"_trp_automatically_translated_slug_pt_pt":null,"_trp_automatically_translated_slug_zh_cn":null,"_trp_automatically_translated_slug_nl_nl":null,"_trp_automatically_translated_slug_pt_br":null,"_trp_automatically_translated_slug_sv_se":null,"rank_math_analytic_object_id":"908","rank_math_internal_links_processed":null,"_trp_automatically_translated_slug_ro_ro":null,"_trp_automatically_translated_slug_sk_sk":null,"_trp_automatically_translated_slug_bg_bg":null,"_trp_automatically_translated_slug_sl_si":null,"litespeed_vpi_list":["webhostinglogo.png"],"litespeed_vpi_list_mobile":["webhostinglogo.png"],"rank_math_seo_score":null,"rank_math_contentai_score":null,"ilj_limitincominglinks":null,"ilj_maxincominglinks":null,"ilj_limitoutgoinglinks":null,"ilj_maxoutgoinglinks":null,"ilj_limitlinksperparagraph":null,"ilj_linksperparagraph":null,"ilj_blacklistdefinition":null,"ilj_linkdefinition":["perl"],"_eb_reusable_block_ids":null,"rank_math_focus_keyword":"perl","rank_math_og_content_image":null,"_yoast_wpseo_metadesc":"Der Name des Programmes Perl stammt aus der Bibel. Jesus will das Himmelreich mit dem Bild eines H\u00e4ndlers beschreiben der eine Perle kaufen will.","_yoast_wpseo_content_score":null,"_yoast_wpseo_focuskeywords":null,"_yoast_wpseo_keywordsynonyms":null,"_yoast_wpseo_estimated-reading-time-minutes":null,"rank_math_description":"Der Name des Programmes Perl stammt aus der Bibel. Jesus will das Himmelreich mit dem Bild eines H\u00e4ndlers beschreiben der eine Perle kaufen will.","surfer_last_post_update":null,"surfer_last_post_update_direction":null,"surfer_keywords":null,"surfer_location":null,"surfer_draft_id":null,"surfer_permalink_hash":null,"surfer_scrape_ready":null,"_thumbnail_id":"1007","footnotes":null,"_links":{"self":[{"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/posts\/4257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/comments?post=4257"}],"version-history":[{"count":0,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/posts\/4257\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/media\/1007"}],"wp:attachment":[{"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/media?parent=4257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/categories?post=4257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webhosting.de\/sv\/wp-json\/wp\/v2\/tags?post=4257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}