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SCO UNIX下的反刪除(undelete)

瀏覽:2日期:2024-06-09 10:31:13

SCO OpenServer支持Versioning Filesystems(undelete),但是缺省卻沒有打開此項功能,下面是具體細節: 1) scoadmin中選擇Hardware/Kernel Manager,選擇Filesystem configuration, 設置MAXVDEPTH為一個非零值(n=保存多少以前版本,設置較大數時要考慮磁盤空間) 設置MINVTIME(文件versioned之前等待的秒數) 2) 重新編譯(Relink)內核; 3) 重新啟動服務器; 4) 啟用Undelete,針對需要設置undelete的目錄(例如:/u/data) undelete -s /u/data 5) 為了察看Versioned情況,設置以下環境變量: SHOWVERSIONS=1; export SHOWVERSIONS 6) 用文件察看命令察看Versioned的文件,可以根據需要恢復刪除或覆蓋的文件。

undelete supports the following options:

If the -l, -p, -s, -u and -v options are not specifIEd, undelete recovers the specified files.

-l print a listing of all versions of the specified file(s)

-p purge (permanently delete) specified source file(s)

-s turn the version attribute on for the specified Directories and its subsequent child directories

-u turn the version attribute off for the specified directories

-v force the specified file(s) to be versioned

The following additional options are recognized:

-d normally, if the specified file is a directory, undelete will operate on the files contained in that directory. If this option is specified, undelete operates on the directory itself.

-------------------------------------------------------------------------------- NOTE: undelete does not work on directories that are mounted. --------------------------------------------------------------------------------

-i undelete will prompt for confirmation prior to recovering a file that will overwrite the current version of the file. A y answer means that the undeletion should proceed. Any other answer prevents undelete from undeleting the file.

-f undelete will recover the file(s) without prompting even if it is overwriting over an existing current version of the file. This option overrides the -i option. Note that this is the default if the standard input is not a terminal.

-r undelete will operate recursively on any directories in the argument list. Symbolic links that are encountered with this option will not be traversed.

-m [+-]days undelete will only consider files that were deleted less than ( - ), greater than ( + ) or exactly (neither - nor + ) days ago.

標簽: Unix系統
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