{"id":643,"date":"2017-03-21T20:45:46","date_gmt":"2017-03-21T19:45:46","guid":{"rendered":"http:\/\/www.netexpertise.eu\/fr\/?p=643"},"modified":"2021-06-02T07:44:13","modified_gmt":"2021-06-02T06:44:13","slug":"compter-des-enregistrements-en-powershell","status":"publish","type":"post","link":"http:\/\/www.netexpertise.eu\/fr\/systeme\/windows\/compter-des-enregistrements-en-powershell.html","title":{"rendered":"Compter des Enregistrements en Powershell de Fa\u00e7on Fiable"},"content":{"rendered":"\n<p>Powershell fournit une m\u00e9thode \u00ab\u00a0count\u00a0\u00bb qui para\u00eet l\u00e9gitime pour compter des lignes, des fichiers ou des objets. J&rsquo;ai \u00e9t\u00e9 tr\u00e8s surpris de constater que <a href=\"\/fr\/tag\/powershell\">PowerShell<\/a> ne retournait rien quand il devrait compter 0 ou 1.<br>\u00a0<br>Voici une capture d&rsquo;\u00e9cran o\u00f9 je retourne le nombre de comptes Active Directory, qui montre les r\u00e9sultats inattendus de count.<br>\u00a0<br><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"\/images\/PowerShell_count_01.jpg\" alt=\"R\u00e9sultats incorrects du count de Powershell\"\/><\/figure><\/div>\n\n\n\n<p><br>Utilisez plut\u00f4t la commande <a href=\"https:\/\/docs.microsoft.com\/en-us\/powershell\/module\/microsoft.powershell.utility\/measure-object\" target=\"_blank\" rel=\"noreferrer noopener\">Measure-Object<\/a> \u00e0 la place et s\u00e9lectionnez la valeur count:<br><br><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"powershell\" class=\"language-powershell\">C:\\>(Get-ADUser -filter {SamAccountName -like \"dron*\"} |\n     select SamAccountName | measure).count\n1<\/code><\/pre>\n\n\n\n<p>\u00a0<br>En plus de la commande Measure-Object qui compte le nombre d&rsquo;objets, vous pouvez utiliser la commande \u00ab\u00a0tee\u00a0\u00bb qui permet de stocker l&rsquo;ensemble des r\u00e9sultats dans une variable et son nombre d&rsquo;\u00e9l\u00e9ments dans une autre, en une seule ligne:<br>\u00a0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"powershell\" class=\"language-powershell\">C:\\>$nbComptes = (Get-ADUser -filter {SamAccountName -like \"dr*\"} |\n                  select SamAccountName |\n                  tee -Variable comptes | measure).count\n\nC:\\>$nbComptes\n3\n\nC:\\>$comptes\n\nSamAccountName\n--------------\ndraguene\ndrondy\ndroze<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Powershell fournit une m\u00e9thode \u00ab\u00a0count\u00a0\u00bb qui para\u00eet l\u00e9gitime pour compter des lignes, des fichiers ou des objets. J&rsquo;ai \u00e9t\u00e9 tr\u00e8s surpris de constater que PowerShell ne retournait rien quand il devrait compter 0 ou 1.\u00a0Voici une capture d&rsquo;\u00e9cran o\u00f9 je retourne le nombre de comptes Active Directory, qui montre les r\u00e9sultats inattendus de count.\u00a0 Utilisez [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[66],"tags":[419],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Netexpertise - Compter des Enregistrements en Powershell de Fa\u00e7on Fiable<\/title>\n<meta name=\"description\" content=\".count semble retourner des r\u00e9sultats al\u00e9atoires en Powershell. 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