wipefile.txt

来自「使用于OS/2下的小工具的C源程序,使用于OS/2下的小工具的C源程序」· 文本 代码 · 共 36 行

                                          WIPEFILE [DUAL MODE]
     
     NAME WIPEFILE
     
     SYNTAX
     
     Wipefile -count file(s) | /H | /? | /V | /TEST | /N | /Y]
     
     
     DESCRIPTION
     
     Wipefile destroys  the contents of a file by writing over
     it  randomized   data  multiple   time.  The   number  of
     overwrites is given with -count option.
     
     You can  test the  program with  using either /TEST or /N
     option. Then  the program  will show  the files  it would
     delete, but leave them untouched.
     
     Wipefile only  wipes the  files, it does not delete them.
     Normally wipefile  requires confirmation  for  each  file
     before destruction.  With the  /Y-option, wipefile  takes
     the default action and wipes each file.
     
     Why  are   programs  in  the  wipefile  category  needed?
     Normally deleting  a file  does not destroy the data from
     disk. The operating system only marks the disk sectors of
     the file  unused. The  information can be retained with a
     tool, which  reads data  directly from  raw disk.  If you
     want to  be absolutely  sure, that  no one  can read your
     data, you  must first destroy the contents of the file by
     physically writing over it.
     
     SEE ALSO:
     wipedisk