This script launch 10 robocopy processes simultaneously to copy folders that begin with a letter from ‘a’ to ‘k’

Script :


Reference :

Robocopy

Copies file data.

Syntax

Parameters

Parameter Description
<Source> Specifies the path to the source directory.
<Destination> Specifies the path to the destination directory.
<File> Specifies the file or files to be copied. You can use wildcard characters (* or ?), if you want. If the File parameter is not specified, *.* is used as the default value.
<Options> Specifies options to be used with the robocopy command.

Copy options

Option Description
/s Copies subdirectories. Note that this option excludes empty directories.
/e Copies subdirectories. Note that this option includes empty directories. For additional information, see Remarks.
/lev:<N> Copies only the top N levels of the source directory tree.
/z Copies files in Restart mode.
/b Copies files in Backup mode.
/zb Uses Restart mode. If access is denied, this option uses Backup mode.
/efsraw Copies all encrypted files in EFS RAW mode.
/copy:<CopyFlags> Specifies the file properties to be copied. The following are the valid values for this option:D DataA Attributes

T Time stamps

S NTFS access control list (ACL)

O Owner information

U Auditing information

The default value for CopyFlags is DAT (data, attributes, and time stamps).

/dcopy:T Copies directory time stamps.
/sec Copies files with security (equivalent to /copy:DAT).
/copyall Copies all file information (equivalent to /copy:DATSOU).
/nocopy Copies no file information (useful with /purge).
/secfix Fixes file security on all files, even skipped ones.
/timfix Fixes file times on all files, even skipped ones.
/purge Deletes destination files and directories that no longer exist in the source. For additional information, see Remarks.
/mir Mirrors a directory tree (equivalent to /e plus /purge). For additional information, see Remarks.
/mov Moves files, and deletes them from the source after they are copied.
/move Moves files and directories, and deletes them from the source after they are copied.
/a+:[RASHCNET] Adds the specified attributes to copied files.
/a-:[RASHCNET] Removes the specified attributes from copied files.
/create Creates a directory tree and zero-length files only.
/fat Creates destination files by using 8.3 character-length FAT file names only.
/256 Turns off support for very long paths (longer than 256 characters).
/mon:<N> Monitors the source, and runs again when more than N changes are detected.
/mot:<M> Monitors source, and runs again in M minutes if changes are detected.
/MT[:N] Creates multi-threaded copies with N threads. N must be an integer between 1 and 128. The default value for N is 8.The /MT parameter cannot be used with the /IPG and /EFSRAW parameters.Redirect output using /LOG option for better performance.

noteNote
The /MT parameter applies to Windows Server 2008 R2 and Windows 7.

 

/rh:hhmm-hhmm Specifies run times when new copies may be started.
/pf Checks run times on a per-file (not per-pass) basis.
/ipg:n Specifies the inter-packet gap to free bandwidth on slow lines.
/sl Copies the symbolic link instead of the target.
ImportantImportant
When using the /SECFIX copy option, specify the type of security information you want to copy by also using one of these additional copy options:

  • /COPYALL
  • /COPY:O
  • /COPY:S
  • /COPY:U
  • /SEC

 

File selection options

Option Description
/a Copies only files for which the Archive attribute is set.
/m Copies only files for which the Archive attribute is set, and resets the Archive attribute.
/ia:[RASHCNETO] Includes only files for which any of the specified attributes are set.
/xa:[RASHCNETO] Excludes files for which any of the specified attributes are set.
/xf <FileName>[ …] Excludes files that match the specified names or paths. Note that FileName can include wildcard characters (* and ?).
/xd <Directory>[ …] Excludes directories that match the specified names and paths.
/xct Excludes changed files.
/xn Excludes newer files.
/xo Excludes older files.
/xx Excludes extra files and directories.
/xl Excludes “lonely” files and directories.
/is Includes the same files.
/it Includes “tweaked” files.
/max:<N> Specifies the maximum file size (to exclude files bigger than N bytes).
/min:<N> Specifies the minimum file size (to exclude files smaller than N bytes).
/maxage:<N> Specifies the maximum file age (to exclude files older than N days or date).
/minage:<N> Specifies the minimum file age (exclude files newer than N days or date).
/maxlad:<N> Specifies the maximum last access date (excludes files unused since N).
/minlad:<N> Specifies the minimum last access date (excludes files used since N) If N is less than 1900, N specifies the number of days. Otherwise, N specifies a date in the format YYYYMMDD.
/xj Excludes junction points, which are normally included by default.
/fft Assumes FAT file times (two-second precision).
/dst Compensates for one-hour DST time differences.
/xjd Excludes junction points for directories.
/xjf Excludes junction points for files.

Retry options

Option Description
/r:<N> Specifies the number of retries on failed copies. The default value of N is 1,000,000 (one million retries).
/w:<N> Specifies the wait time between retries, in seconds. The default value of N is 30 (wait time 30 seconds).
/reg Saves the values specified in the /r and /w options as default settings in the registry.
/tbd Specifies that the system will wait for share names to be defined (retry error 67).

Logging options

Option Description
/l Specifies that files are to be listed only (and not copied, deleted, or time stamped).
/x Reports all extra files, not just those that are selected.
/v Produces verbose output, and shows all skipped files.
/ts Includes source file time stamps in the output.
/fp Includes the full path names of the files in the output.
/bytes Prints sizes, as bytes.
/ns Specifies that file sizes are not to be logged.
/nc Specifies that file classes are not to be logged.
/nfl Specifies that file names are not to be logged.
/ndl Specifies that directory names are not to be logged.
/np Specifies that the progress of the copying operation (the number of files or directories copied so far) will not be displayed.
/eta Shows the estimated time of arrival (ETA) of the copied files.
/log:<LogFile> Writes the status output to the log file (overwrites the existing log file).
/log+:<LogFile> Writes the status output to the log file (appends the output to the existing log file).
/unicode Displays the status output as Unicode text.
/unilog:<LogFile> Writes the status output to the log file as Unicode text (overwrites the existing log file).
/unilog+:<LogFile> Writes the status output to the log file as Unicode text (appends the output to the existing log file).
/tee Writes the status output to the console window, as well as to the log file.
/njh Specifies that there is no job header.
/njs Specifies that there is no job summary.

Job options

Option Description
/job:<JobName> Specifies that parameters are to be derived from the named job file.
/save:<JobName> Specifies that parameters are to be saved to the named job file.
/quit Quits after processing command line (to view parameters).
/nosd Indicates that no source directory is specified.
/nodd Indicates that no destination directory is specified.
/if Includes the specified files.

 

Remarks

  • The /mir option is equivalent to the /e plus /purge options with one small difference in behavior:
    • With the /e plus /purge options, if the destination directory exists, the destination directory security settings are not overwritten.
    • With the /mir option, if the destination directory exists, the destination directory security settings are overwritten.

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