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undelete 如何在SCO UNIX下的反刪除

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【undelete 如何在SCO UNIX下的反刪除】1 2 下一頁(yè)
SCO OpenServer支持Versioning Filesystems(undelete)，但是缺省卻沒(méi)有打開(kāi)此項(xiàng)功能，下面是具體細(xì)節(jié):
1) scoadmin中選擇Hardware/Kernel Manager，選擇Filesystem configuration，
設(shè)置MAXVDEPTH為一個(gè)非零值(n=保存多少以前版本，設(shè)置較大數(shù)時(shí)要考慮磁盤(pán)空間)
設(shè)置MINVTIME(文件versioned之前等待的秒數(shù))
2) 重新編譯(Relink)內(nèi)核;
3) 重新啟動(dòng)服務(wù)器;
4) 啟用Undelete，針對(duì)需要設(shè)置undelete的目錄(例如:/u/data)
undelete -s /u/data
5) 為了察看Versioned情況，設(shè)置以下環(huán)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(jù)需要恢復(fù)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.
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NOTE: undelete does not work on directories that are mounted.
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-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.

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