{"id":20,"date":"2008-02-22T10:51:41","date_gmt":"2008-02-22T09:51:41","guid":{"rendered":"http:\/\/linux.leunen.com\/?p=20"},"modified":"2008-02-22T10:52:02","modified_gmt":"2008-02-22T09:52:02","slug":"history","status":"publish","type":"post","link":"https:\/\/www.leunen.com\/linux\/2008\/02\/history\/","title":{"rendered":"history"},"content":{"rendered":"<p>Dans une console, lorsque vous appuyez sur les fl\u00e8ches haute et basse, les commandes que vous avez tap\u00e9 d\u00e9filent dans un sens ou dans l&rsquo;autre. C&rsquo;est tr\u00e8s pratique lorsqu&rsquo;on a des commandes r\u00e9p\u00e9titives \u00e0 entrer au clavier. Ca \u00e9vite de devoir les retaper chaque fois. Mais de temps \u00e0 autre, on aimerait vider cet historique. Ceci peut se faire tr\u00e8s simplement avec la commande:<\/p>\n<p><code>$ history -c<\/code><\/p>\n<p>Si dans la console vous tapez <em>Ctrl+r<\/em>, vous pouvez, \u00e0 l&rsquo;instar de <em>grep<\/em>, faire une recherche dans l&rsquo;historique. Imaginez que vous cherchiez par exemple quelle commande vous avez bien pu taper pour lister les modules charg\u00e9s au d\u00e9marrage. Tout ce dont vous vous souvenez c&rsquo;est qu&rsquo;il y avait <em>mod<\/em> dedans. Et bien, tapez <em>Ctrl+r<\/em> et ensuite <em>mod<\/em> et la commande <em>lsmod<\/em> dont vous ne vous souveniez plus appara\u00eet.<\/p>\n<p>Autre option int\u00e9ressante: il est possible de sauvegarder (et m\u00eame d&rsquo;importer) tout l&rsquo;historique dans un fichier. Je m&rsquo;en sers lorsque je dois taper au clavier une s\u00e9rie de commandes compliqu\u00e9es et que je voudrais bien en garder une trace pour le jour o\u00f9 j&rsquo;aurai de nouveau besoin de cette suite de commandes. Dans ce cas, je proc\u00e8de comme suit:<\/p>\n<p><code>$    history -c<\/code><\/p>\n<p>Ceci vide l&rsquo;historique. Ensuite, je tape ma s\u00e9rie de commandes et je fais:<\/p>\n<p><code>$ history -w mon_fichier<\/code><\/p>\n<p>Cette derni\u00e8re commande \u00e9crit dans <em>mon_fichier<\/em> le contenu de l&rsquo;historique et donc dans ce cas la liste des commandes qui m&rsquo;int\u00e9ressent.<\/p>\n<p>Je vous invite \u00e0 lire la page de manuel de <em>history<\/em> parce qu&rsquo;il a encore beaucoup d&rsquo;autres possibilit\u00e9s \u00e0 d\u00e9couvrir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans une console, lorsque vous appuyez sur les fl\u00e8ches haute et basse, les commandes que vous avez tap\u00e9 d\u00e9filent dans un sens ou dans l&rsquo;autre. C&rsquo;est tr\u00e8s pratique lorsqu&rsquo;on a des commandes r\u00e9p\u00e9titives \u00e0 entrer au clavier. Ca \u00e9vite de devoir les retaper chaque fois. Mais de temps \u00e0 autre, on aimerait vider cet historique. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Dans une console, lorsque vous appuyez sur les fl\u00e8ches haute et basse, les commandes que vous avez tap\u00e9 d\u00e9filent dans un sens ou dans l&#039;autre. C&#039;est tr\u00e8s pratique lorsqu&#039;on a des commandes r\u00e9p\u00e9titives \u00e0 entrer au clavier. Ca \u00e9vite de devoir les retaper chaque fois. Mais de temps \u00e0 autre, on aimerait vider cet historique.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Michel Leunen\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.leunen.com\/linux\/2008\/02\/history\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.8\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Autour de Linux | Ubuntu, linux, C++, audio, python, ...\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"history | Autour de Linux\" \/>\n\t\t<meta property=\"og:description\" content=\"Dans une console, lorsque vous appuyez sur les fl\u00e8ches haute et basse, les commandes que vous avez tap\u00e9 d\u00e9filent dans un sens ou dans l&#039;autre. C&#039;est tr\u00e8s pratique lorsqu&#039;on a des commandes r\u00e9p\u00e9titives \u00e0 entrer au clavier. 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