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Robocopy, or "Robust File Copy", is a command-line directory and/or file replication command. Robocopy functionally replaces Xcopy, with more options. It has been available as part of the Windows Resource Kit starting with Windows NT 4.0, and was first introduced as a standard feature in Windows Vista and Windows Server 2008. The command is robocopy. ==Features== Robocopy is noted for capabilities above and beyond the built-in Windows copy and xcopy commands, including the following: *Ability to tolerate network interruptions and resume copying. (incomplete files are marked with a date stamp of 1970-01-01 and contain a recovery record so Robocopy knows where to continue from) *Ability to skip NTFS junction points which can cause copying failures because of infinite loops ( /XJ)*Ability to copy file data and attributes correctly, and to preserve original timestamps, as well as NTFS ACLs, owner information, and audit information using command line switches. ( /COPYALL or /COPY:) Copying folder timestamps is also possible in later versions (/DCOPY:T).*Ability to assert the Windows NT "backup right" ( /B) so an administrator may copy an entire directory, including files denied readability to the administrator.*Persistence by default, with a programmable number of automatic retries if a file cannot be opened. *A "mirror" mode, which keeps trees in sync by optionally deleting files out of the destination that are no longer present in the source. *Ability to skip files that already appear in the destination folder with identical size and timestamp. *A continuously updated command-line progress indicator. *Ability to copy file and folder names exceeding 254 characters — up to a theoretical limit of 32,000 characters — without errors. *Multithreaded copying. (Windows 7 and Windows Server 2008 R2) *Return code on program termination for batch file usage. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Robocopy」の詳細全文を読む スポンサード リンク
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