venerdì 23 ottobre 2009

copiare uno scatafascio di files in Windows...

Siamo alle solite.
Un cliente cambia PC, e bisogna travasargli il contenuto del vecchio hard disk sul nuovo...
In mezzo ci saranno mezzo milione di foto della comunione della figlia, dodici film in divx, uno scatafascio di cartelle in cui non si capisce neppure cosa ci sia dentro, ma sono "fondamentali".

Collegate il vecchio hard disk sul nuovo PC, lo aprite, trovate le cartelle, le selezionate, COPIA, INCOLLA, vi compare il messaggio "due ere geologiche alla fine del processo"... e lasciate il tutto lavorare, confidando che...

E confidate male, perchè in quella miliardata di dile che state per copiare sicuramente ce ne sarà almeno uno che avrà problemi (corrotto, oppure lo sta usando chissà quale servizio o applicazione) e la copia vi si inchioderà...

Bene, il trucco è lasciar stare quel "copia-incolla" da niubbi, installare il resource kit di Windows (si, c'è scritto che è per Windows Server, ma state tranquilli: funziona anche per XP), ed utilizzare il comando ROBOCOPY. E' il pronipote del comando XCOPY, ma è molto più potente, molto più flessibile, molto più tutto.

Ah, essendo uno strumento serio, ovviamente funziona a riga di comando, e non attraverso la GUI. Se siete dei niubbi che affogano se non hanno la GUI, allora la soluzione per voi si chiama TERACOPY.

Tornando a ROBOCOPY, ecco tutto quello che vi serve sapere:

              Usage :: ROBOCOPY source destination [file [file]...] [options]

             source :: Source Directory (drive:\path or \\server\share\path).
        destination :: Destination Dir  (drive:\path or \\server\share\path).
               file :: File(s) to copy  (names/wildcards: default is "*.*").


Copy options :
                 /S :: copy Subdirectories, but not empty ones.
                 /E :: copy subdirectories, including Empty ones.
             /LEV:n :: only copy the top n LEVels of the source directory tree.

                 /Z :: copy files in restartable mode.
                 /B :: copy files in Backup mode.
                /ZB :: use restartable mode; if access denied use Backup mode.

  /COPY:copyflag[s] :: what to COPY (default is /COPY:DAT).
                       (copyflags : D=Data, A=Attributes, T=Timestamps).
                       (S=Security=NTFS ACLs, O=Owner info, U=aUditing info).

               /SEC :: copy files with SECurity (equivalent to /COPY:DATS).
           /COPYALL :: COPY ALL file info (equivalent to /COPY:DATSOU).
            /NOCOPY :: COPY NO file info (useful with /PURGE).

             /PURGE :: delete dest files/dirs that no longer exist in source.
               /MIR :: MIRror a directory tree (equivalent to /E plus /PURGE).

               /MOV :: MOVe files (delete from source after copying).
              /MOVE :: MOVE files AND dirs (delete from source after copying).

       /A+:[RASHNT] :: add the given Attributes to copied files.
       /A-:[RASHNT] :: remove the given Attributes from copied files.

            /CREATE :: CREATE directory tree and zero-length files only.
               /FAT :: create destination files using 8.3 FAT file names only.
               /FFT :: assume FAT File Times (2-second granularity).
               /256 :: turn off very long path (> 256 characters) support.

             /MON:n :: MONitor source; run again when more than n changes seen.
             /MOT:m :: MOnitor source; run again in m minutes Time, if changed.

      /RH:hhmm-hhmm :: Run Hours - times when new copies may be started.
                /PF :: check run hours on a Per File (not per pass) basis.

             /IPG:n :: Inter-Packet Gap (ms), to free bandwidth on slow lines.


File Selection Options :

                 /A :: copy only files with the Archive attribute set.
                 /M :: copy only files with the Archive attribute and reset it.
    /IA:[RASHCNETO] :: Include only files with any of the given Attributes set.
    /XA:[RASHCNETO] :: eXclude files with any of the given Attributes set.

 /XF file [file]... :: eXclude Files matching given names/paths/wildcards.
 /XD dirs [dirs]... :: eXclude Directories matching given names/paths.

                /XC :: eXclude Changed files.
                /XN :: eXclude Newer files.
                /XO :: eXclude Older files.
                /XX :: eXclude eXtra files and directories.
                /XL :: eXclude Lonely files and directories.
                /IS :: Include Same files.
                /IT :: Include Tweaked files.

             /MAX:n :: MAXimum file size - exclude files bigger than n bytes.
             /MIN:n :: MINimum file size - exclude files smaller than n bytes.

          /MAXAGE:n :: MAXimum file AGE - exclude files older than n days/date.
          /MINAGE:n :: MINimum file AGE - exclude files newer than n days/date.
          /MAXLAD:n :: MAXimum Last Access Date - exclude files unused since n.
          /MINLAD:n :: MINimum Last Access Date - exclude files used since n.
                       (If n < 1900 then n = n days, else n = YYYYMMDD date).

                /XJ :: eXclude Junction points. (normally included by default).


Retry Options :
               /R:n :: number of Retries on failed copies: default 1 million.
               /W:n :: Wait time between retries: default is 30 seconds.
               /REG :: Save /R:n and /W:n in the Registry as default settings.
               /TBD :: wait for sharenames To Be Defined (retry error 67).

Logging Options :
                 /L :: List only - don't copy, timestamp or delete any files.
                 /X :: report all eXtra files, not just those selected.
                 /V :: produce Verbose output, showing skipped files.
                /TS :: include source file Time Stamps in the output.
                /FP :: include Full Pathname of files in the output.

                /NS :: No Size - don't log file sizes.
                /NC :: No Class - don't log file classes.
               /NFL :: No File List - don't log file names.
               /NDL :: No Directory List - don't log directory names.

                /NP :: No Progress - don't display % copied.
               /ETA :: show Estimated Time of Arrival of copied files.

          /LOG:file :: output status to LOG file (overwrite existing log).
         /LOG+:file :: output status to LOG file (append to existing log).

               /TEE :: output to console window, as well as the log file.

               /NJH :: No Job Header.
               /NJS :: No Job Summary.


Job Options :
      /JOB:jobname :: take parameters from the named JOB file.
      /SAVE:jobname :: SAVE parameters to the named job file
      /QUIT :: QUIT after processing command line (to view parameters).
      /NOSD :: NO Source Directory is specified.
      /NODD :: NO Destination Directory is specified.
      /IF :: Include the following Files.

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