{"id":4502,"date":"2023-07-10T14:25:59","date_gmt":"2023-07-10T14:25:59","guid":{"rendered":"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/"},"modified":"2023-07-10T14:25:59","modified_gmt":"2023-07-10T14:25:59","slug":"r-listar-arquivos-por-data","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/","title":{"rendered":"Como listar arquivos por data em r (com exemplo)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para listar arquivos no diret\u00f3rio de trabalho atual em R por data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract all CSV files in working directory\n<\/span>file_info = file. <span style=\"color: #3366ff;\">info<\/span> ( <span style=\"color: #3366ff;\">list.files<\/span> (pattern=\" <span style=\"color: #ff0000;\">*.csv<\/span> \"))\n\n<span style=\"color: #008080;\">#sort files based on mtime (date and time modification)\n<\/span>file_info = file_info[ <span style=\"color: #008000;\">with<\/span> (file_info, <span style=\"color: #008000;\">order<\/span> (as. <span style=\"color: #3366ff;\">POSIXct<\/span> (mtime))), ]\n\n<span style=\"color: #008080;\">#view only file names with modification date and time\n<\/span>file_info[c(\" <span style=\"color: #ff0000;\">mtime<\/span> \")]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar essa sintaxe na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo: como listar arquivos por data em R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Suponha que eu queira listar todos os arquivos CSV no <a href=\"https:\/\/statorials.org\/pt\/setwd-getwd-em-r\/\" target=\"_blank\" rel=\"noopener\">diret\u00f3rio de trabalho atual<\/a> em R por data.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Posso usar a seguinte sintaxe para primeiro extrair todos os arquivos CSV (com informa\u00e7\u00f5es do arquivo) do diret\u00f3rio de trabalho atual:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract all CSV files in working directory\n<\/span>file_info = file. <span style=\"color: #3366ff;\">info<\/span> ( <span style=\"color: #3366ff;\">list.files<\/span> (pattern=\" <span style=\"color: #ff0000;\">*.csv<\/span> \"))\n\n<span style=\"color: #008080;\">#view all CSV files<\/span>\nfile_info\n\n                        size isdir mode mtime ctime atime exe\nbasketball_data.csv 55 FALSE 666 2023-01-06 11:07:43 2022-07-12 09:07:26 2023-04-18 09:42:19 no\ndf1.csv 126 FALSE 666 2022-04-21 10:48:24 2022-04-21 10:48:24 2023-04-18 09:42:19 no\ndf2.csv 126 FALSE 666 2022-04-21 10:48:30 2022-04-21 10:48:29 2023-04-18 09:42:19 no\ndf3.csv 126 FALSE 666 2022-04-21 10:48:34 2022-04-21 10:48:34 2023-04-18 09:42:19 no\nmy_data.csv 53 FALSE 666 2022-09-09 09:02:21 2022-04-22 09:00:13 2023-04-18 09:42:19 no\nmy_list.csv 90 FALSE 666 2022-04-21 09:40:01 2022-04-21 09:39:59 2023-04-18 09:42:19 no\nmy_test.csv 146 FALSE 666 2022-04-21 09:42:25 2022-04-21 09:42:25 2023-04-18 09:42:19 no\nplayer_stats.csv 137 FALSE 666 2023-04-11 09:07:20 2023-04-11 09:07:20 2023-04-18 09:42:19 no\nplayers_data.csv 50 FALSE 666 2023-01-06 09:44:12 2023-01-06 09:44:12 2023-04-18 09:42:19 no\nteam_info.csv 131 FALSE 666 2023-04-11 09:07:21 2023-04-11 09:07:21 2023-04-18 09:42:19 no\ntest.csv 18059168 FALSE 666 2022-09-07 09:07:34 2020-02-01 13:44:03 2023-04-18 09:42:19 no\nuneven_data.csv 43 FALSE 666 2023-01-06 14:02:17 2023-01-06 14:00:27 2023-04-18 09:42:19 no\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Posso ent\u00e3o usar a fun\u00e7\u00e3o <strong>order()<\/strong> para ordenar os arquivos por <strong>mtime<\/strong> , que representa a data e hora em que os arquivos foram modificados pela \u00faltima vez:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#sort files based on mtime (date and time modification)\n<\/span>file_info = file_info[ <span style=\"color: #008000;\">with<\/span> (file_info, <span style=\"color: #008000;\">order<\/span> (as. <span style=\"color: #3366ff;\">POSIXct<\/span> (mtime))), ]\n\n<span style=\"color: #008080;\">#view sorted files<\/span>\nfile_info\n\n                        size isdir mode mtime ctime atime exe\nmy_list.csv 90 FALSE 666 2022-04-21 09:40:01 2022-04-21 09:39:59 2023-04-18 09:42:19 no\nmy_test.csv 146 FALSE 666 2022-04-21 09:42:25 2022-04-21 09:42:25 2023-04-18 09:42:19 no\ndf1.csv 126 FALSE 666 2022-04-21 10:48:24 2022-04-21 10:48:24 2023-04-18 09:42:19 no\ndf2.csv 126 FALSE 666 2022-04-21 10:48:30 2022-04-21 10:48:29 2023-04-18 09:42:19 no\ndf3.csv 126 FALSE 666 2022-04-21 10:48:34 2022-04-21 10:48:34 2023-04-18 09:42:19 no\ntest.csv 18059168 FALSE 666 2022-09-07 09:07:34 2020-02-01 13:44:03 2023-04-18 09:42:19 no\nmy_data.csv 53 FALSE 666 2022-09-09 09:02:21 2022-04-22 09:00:13 2023-04-18 09:42:19 no\nplayers_data.csv 50 FALSE 666 2023-01-06 09:44:12 2023-01-06 09:44:12 2023-04-18 09:42:19 no\nbasketball_data.csv 55 FALSE 666 2023-01-06 11:07:43 2022-07-12 09:07:26 2023-04-18 09:42:19 no\nuneven_data.csv 43 FALSE 666 2023-01-06 14:02:17 2023-01-06 14:00:27 2023-04-18 09:42:19 no\nplayer_stats.csv 137 FALSE 666 2023-04-11 09:07:20 2023-04-11 09:07:20 2023-04-18 09:42:19 no\nteam_info.csv 131 FALSE 666 2023-04-11 09:07:21 2023-04-11 09:07:21 2023-04-18 09:42:19 no\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que voc\u00ea pode usar <strong>ctime<\/strong> se quiser classificar os arquivos por <em>data de cria\u00e7\u00e3o<\/em> ou <strong>atime<\/strong> para classificar os arquivos por <em>data de acesso<\/em> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Finalmente, podemos subconfigurar o quadro de dados para exibir apenas os nomes dos arquivos e a data e hora em que foram modificados pela \u00faltima vez:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view only file names with modification date and time\n<\/span>file_info[c(\" <span style=\"color: #ff0000;\">mtime<\/span> \")]\n\n                                  mtime\nmy_list.csv 2022-04-21 09:40:01\nmy_test.csv 2022-04-21 09:42:25\ndf1.csv 2022-04-21 10:48:24\ndf2.csv 2022-04-21 10:48:30\ndf3.csv 2022-04-21 10:48:34\ntest.csv 2022-09-07 09:07:34\nmy_data.csv 2022-09-09 09:02:21\nplayers_data.csv 2023-01-06 09:44:12\nbasketball_data.csv 2023-01-06 11:07:43\nuneven_data.csv 2023-01-06 14:02:17\nplayer_stats.csv 2023-04-11 09:07:20\nteam_info.csv 2023-04-11 09:07:21\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Se desejar, voc\u00ea tamb\u00e9m pode exibir apenas nomes de arquivos por data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view only file names\n<\/span>rownames(file_info)\n\n [1] \"my_list.csv\" \"my_test.csv\" \"df1.csv\" \"df2.csv\" \"df3.csv\"            \n [6] \"test.csv\" \"my_data.csv\" \"players_data.csv\" \"basketball_data.csv\" \"uneven_data.csv\"    \n[11] \"player_stats.csv\" \"team_info.csv\"  \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os doze nomes de arquivos CSV s\u00e3o ordenados por data.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong> <a href=\"https:\/\/statorials.org\/pt\/lista-de-arquivos-r\/\" target=\"_blank\" rel=\"noopener\">Como usar a fun\u00e7\u00e3o list.files() em R (4 exemplos)<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras tarefas comuns em R:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/pt\/leia-o-arquivo-zip-em-r\/\" target=\"_blank\" rel=\"noopener\">Como ler arquivos Zip em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/importar-csv-para-r\/\" target=\"_blank\" rel=\"noopener\">Como importar arquivos CSV para R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/importar-excel-para-r\/\" target=\"_blank\" rel=\"noopener\">Como importar arquivos Excel para R<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para listar arquivos no diret\u00f3rio de trabalho atual em R por data: #extract all CSV files in working directory file_info = file. info ( list.files (pattern=&#8221; *.csv &#8220;)) #sort files based on mtime (date and time modification) file_info = file_info[ with (file_info, order (as. POSIXct (mtime))), ] #view [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-4502","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como listar arquivos por data em R (com exemplo) \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como listar arquivos por data em R, com um exemplo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como listar arquivos por data em R (com exemplo) \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como listar arquivos por data em R, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-10T14:25:59+00:00\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/\",\"url\":\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/\",\"name\":\"Como listar arquivos por data em R (com exemplo) \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-10T14:25:59+00:00\",\"dateModified\":\"2023-07-10T14:25:59+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como listar arquivos por data em R, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/r-listar-arquivos-por-data\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como listar arquivos por data em r (com exemplo)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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