{"id":1527,"date":"2010-11-07T14:37:47","date_gmt":"2010-11-07T12:37:47","guid":{"rendered":"http:\/\/www.limilabs.com\/blog\/?p=1527"},"modified":"2013-06-26T10:37:38","modified_gmt":"2013-06-26T08:37:38","slug":"issue-a-custom-command-to-ftp-server","status":"publish","type":"post","link":"https:\/\/www.limilabs.com\/blog\/issue-a-custom-command-to-ftp-server","title":{"rendered":"Issue a custom command to FTP server"},"content":{"rendered":"

This article describes how to issue a custom command to FTP server using Ftp.dll – .NET FTP and FTPS library<\/a>.<\/p>\n

\r\n\/\/ C# version\r\n\r\nusing (Ftp client = new Ftp())\r\n{\r\n    client.Connect("ftp.example.org");\r\n    client.Login("user", "password");\r\n\r\n    FtpResponse response = client.SendCommand("HELP");\r\n\r\n    Console.WriteLine(response.Message);\r\n    foreach (string line in response.Lines)\r\n        Console.WriteLine(line);\r\n\r\n    client.Close();\r\n}\r\n\r\n<\/pre>\n
\r\n' VB.NET version\r\n\r\nUsing client As New Ftp()\r\n\tclient.Connect("ftp.example.org")\r\n\tclient.Login("user", "password")\r\n\r\n\tDim response As FtpResponse = client.SendCommand("HELP")\r\n\r\n\tConsole.WriteLine(response.Message)\r\n\tFor Each line As String In response.Lines\r\n\t\tConsole.WriteLine(line)\r\n\tNext\r\n\r\n\tclient.Close()\r\nEnd Using\r\n\r\n<\/pre>\n
The abowe code producess following output:<\/p>\n

\nThe following commands are recognized:
\nUSER   PASS   QUIT   CWD    PWD    PORT   PASV   TYPE
\nLIST   REST   CDUP   RETR   STOR   SIZE   DELE   RMD
\nMKD    RNFR   RNTO   ABOR   SYST   NOOP   APPE   NLST
\nMDTM   XPWD   XCUP   XMKD   XRMD   NOP    EPSV   EPRT
\nAUTH   ADAT   PBSZ   PROT   FEAT   MODE   OPTS   HELP
\nALLO   MLST   MLSD   SITE   P@SW   STRU   CLNT   MFMT
\nHASH
\n<\/code><\/p>\n
The other overload of SendCommand <\/em>allows you to specify, if after negative response exception is thrown<\/strong>.<\/p>\n
The next sample will not throw exception if the server does not recognize the command.
\nYou can examine IsPositive<\/em> property to check if the response was successful or not.<\/p>\n
\r\n\/\/ C# version\r\n\r\nusing (Ftp client = new Ftp())\r\n{\r\n    client.Connect("ftp.example.org");\r\n    client.Login("user", "password");\r\n\r\n    FtpResponse response = client.SendCommand("HELP", false);\r\n\r\n    Console.WriteLine(response.IsPositive);\r\n    Console.WriteLine(response.Message);\r\n    foreach (string line in response.Lines)\r\n        Console.WriteLine(line);\r\n\r\n\r\n    client.Close();\r\n}\r\n<\/pre>\n
\r\n' VB.NET version\r\n\r\nUsing client As New Ftp()\r\n\tclient.Connect("ftp.example.org")\r\n\tclient.Login("user", "password")\r\n\r\n\tDim response As FtpResponse = client.SendCommand("HELP", False)\r\n\r\n\tConsole.WriteLine(response.IsPositive)\r\n\tConsole.WriteLine(response.Message)\r\n\tFor Each line As String In response.Lines\r\n\t\tConsole.WriteLine(line)\r\n\tNext\r\n\r\n\r\n\tclient.Close()\r\nEnd Using\r\n<\/pre>\n
You can download Ftp.dll FTP\/FTPS client for .NET here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
This article describes how to issue a custom command to FTP server using Ftp.dll – .NET FTP and FTPS library. \/\/ C# version using (Ftp client = new Ftp()) { client.Connect("ftp.example.org"); client.Login("user", "password"); FtpResponse response = client.SendCommand("HELP"); Console.WriteLine(response.Message); foreach (string line in response.Lines) Console.WriteLine(line); client.Close(); } ‘ VB.NET version Using client As New Ftp() client.Connect("ftp.example.org") […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[15,22,80,57],"class_list":["post-1527","post","type-post","status-publish","format-standard","hentry","category-ftp-dll","tag-c","tag-ftp","tag-ftp-component","tag-vb-net"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1527"}],"collection":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/comments?post=1527"}],"version-history":[{"count":5,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1527\/revisions"}],"predecessor-version":[{"id":4136,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1527\/revisions\/4136"}],"wp:attachment":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/media?parent=1527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/categories?post=1527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/tags?post=1527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}