Linux 教程
Linux ncftp命令
Linux 命令大全Linux ncftp命令用于傳輸文件。
FTP讓用戶(hù)得以下載存放于服務(wù)器主機(jī)的文件，也能將文件上傳到遠(yuǎn)端主機(jī)放置。
NcFTP是文字模式FTP程序的佼佼者，它具備多樣特色， 包括顯示傳輸速率，下載進(jìn)度，自動(dòng)續(xù)傳，標(biāo)住書(shū)簽，可通過(guò)防火墻和代理服務(wù)器等。
當(dāng)不指定用戶(hù)名時(shí)，ncftp 命令會(huì)自動(dòng)嘗試使用匿名賬戶(hù)anonymous 去連接遠(yuǎn)程FTP 服 務(wù)器，不需要用戶(hù)輸入賬號(hào)和密碼。
語(yǔ)法
ncftp [主機(jī)或IP地址]
參數(shù)說(shuō)明：
- -u<用戶(hù)名> 指定登錄FTP服務(wù)器的用戶(hù)名
- -p<密碼> 設(shè)置用戶(hù)密碼
- -P<端口號(hào)> 指定FTP端口號(hào)，默認(rèn)為21
- -j<賬號(hào)> 指定賬號(hào)
- -h 幫助信息
- -v 版本信息
實(shí)例
使用ncftp命令匿名連接FTP服務(wù)器。
例如想匿名連接ftp.kernel.org服務(wù)器，同時(shí)不想輸入anonymous等匿名用戶(hù)名，可直接使用ncftp命令：
ncftp ftp.kernel.org
得到如下信息：
$ ncftp ftp.kernel.org #匿名連接ftp.kernel.org服務(wù)器 NcFTP 3.2.1 (Jul 29, 2007) by Mike Gleason (http://www.NcFTP.com/contact/). #ncftp版權(quán)、版本等信息 Copyright (c) 1992-2005 by Mike Gleason. All rights reserved. Connecting to 149.20.20.133... #連接服務(wù)器 Welcome to ftp.kernel.org. Logging in... #匿名登錄 Welcome to the #歡迎信息 LINUX KERNEL ARCHIVES ftp.kernel.org "Much more than just kernels" IF YOU'RE ACCESSING THIS SITE VIA A WEB BROWSER PLEASE USE THE HTTP URL BELOW INSTEAD! ----> If you are looking for mirror sites, please go <---- ----> to mirrors.kernel.org instead <---- This site is provided as a public service by the Linux Kernel Organization, a California nonprofit corporation. Bandwidth is provided by The Internet Software Consortium, Inc. Our servers are located in San Francisco and Palo Alto, California; Corvallis, Oregon; Amsterdam, Netherlands and Ume., Sweden; use in violation of any applicable laws strictly prohibited. Due to U.S. Exports Regulations, all cryptographic software on this site is subject to the following legal notice: This site includes publicly available encryption source code which, together with object code resulting from the compiling of publicly available source code, may be exported from the United States under License Exception "TSU" pursuant to 15 C.F.R. Section 740.13(e). This legal notice applies to cryptographic software only. Please see the Bureau of Industry and Security (http://www.bis.doc.gov/) for more information about current U.S. regulations. Neither the Linux Kernel Organization, nor its sponsors make any guarantees, explicit or implicit, about the contents of this site. Use at your own risk. This site is accessible via the following mechanisms: FTP ftp://ftp.kernel.org/pub/ HTTP http://www.kernel.org/pub/ RSYNC rsync://rsync.kernel.org/pub/ NFS and SMB/CIFS are no longer available. For comments on this site, please contact <ftpadmin@kernel.org>. Please do not use this address for questions that are not related to the operation of this site. Please see our homepage at http://www.kernel.org/ for links to Linux documentation resources. Login successful. Logged in to ftp.kernel.org. ncftp / >
提示：ncftp的命令提示符為"ncftp / >"，而不是ftp中的"ftp / >"。
使用ncftp命令操作、下載文件。
ncftp的命令基本上與ftp相同，例如可以使用"cd"命令切換在FTP服務(wù)器中的當(dāng)前目錄，使用"ls"命令列出當(dāng)前目錄內(nèi)容，使用"get"命令下載"/pub"目錄下的README文件、使用"quit"離開(kāi)ncftp等。操作結(jié)果如下：
ncftp / > pwd #查看當(dāng)前路徑 ftp://ftp.kernel.org #當(dāng)前路徑為根目錄 ncftp / > ls #查看當(dāng)前目錄列表 bin/ for_mirrors_only/ pub/ dev/ lib/ usr@ etc/ lost+found/ welcome.msg@ ncftp / > cd pub #切換目錄到pub 子目錄 Directory successfully changed. ncftp /pub > ls #查看pub 的目錄列表 dist/ media/ scm/ index.html RCS/ site/ linux/ README software/ lost+found/ README_ABOUT_BZ2_FILES tools/ ncftp /pub > get README #下載README 文件 README: 1.87 KB 10.39 KB/s ncftp /pub > quit #離開(kāi)ncftp
與ftp不同的是，ncftp此時(shí)會(huì)提示用戶(hù)是否將FTP服務(wù)器保存為書(shū)簽，以便于下次登錄，用戶(hù)可以進(jìn)行自定義書(shū)簽名等操作，如下所示：
You have not saved a bookmark for this site. #離開(kāi)提示信息 Would you like to save a bookmark to: ftp://ftp.kernel.org/pub/ Save? (yes/no) yes #確認(rèn)是否保存 Enter a name for this bookmark, or hit enter for "kernel": kernel #輸入書(shū)簽名 Bookmark "kernel" saved.其他擴(kuò)展