Created
March 18, 2016 05:17
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Windows cmd-skript to create a volume shadow copy from command line
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| @echo off | |
| setlocal enableextensions enabledelayedexpansion | |
| set on_error=print_usage | |
| call :main_%~1 %* 2>nul && exit /b || goto !on_error! %* | |
| :print_usage | |
| echo\Usage: %~n0 create ^<drive:^> ^<link^> | |
| echo\ %~n0 remove ^<link^> | |
| echo\ | |
| echo\Examples: | |
| echo\ %~n0 create d: c:\snapshots\d_snap | |
| echo\ %~n0 remove c:\snapshots\d_snap | |
| exit /b | |
| :on_error_exit | |
| exit /b %ERRORLEVEL% | |
| :main_create | |
| set on_error=on_error_exit | |
| if "$~2$~3"=="" goto print_usage %* | |
| set "TAB= " | |
| set "SHADOW_COPY_BASE=\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy" | |
| set "shadow_id=" | |
| set "shadow_volume=" | |
| set "shadow_drive=%~2" | |
| set "link=%~3" | |
| >nul mklink /d "%link%" . && rmdir "%link%" || ( | |
| echo/Cannot create symlink. | |
| exit /b 2 | |
| ) | |
| for /f "usebackq tokens=1,2,* delims=;=" %%a in ( `wmic shadowcopy call create "ClientAccessible"^,"%shadow_drive%\"` ) do ( | |
| set "k=%%a" | |
| set "k=!k:%TAB%=!" | |
| set "k=!k: =!" | |
| set "v=%%b" | |
| set "v=!v: =!" | |
| if "!k!"=="ReturnValue" ( | |
| if not "!v!"=="0" ( | |
| echo\Cannot create snapshot ^(!k! = !v!^). | |
| exit /b 1 | |
| ) | |
| ) else if "!k!"=="ShadowID" ( | |
| set "shadow_id=!v:"=!" | |
| break | |
| ) | |
| ) | |
| if "%shadow_id"=="" ( | |
| echo\Cannot create snapshot. | |
| exit /b 1 | |
| ) | |
| for /f "usebackq tokens=1,* delims=:" %%a in ( `vssadmin list shadows "/shadow=%shadow_id%"` ) do ( | |
| set "k=%%a" | |
| set "k=!k:%TAB%=!" | |
| set "k=!k: =!" | |
| set "v=%%b" | |
| set "v=!v: =!" | |
| set "n=!v:%SHADOW_COPY_BASE%=!" | |
| if not "!n!"=="!v!" ( | |
| set "shadow_volume=%SHADOW_COPY_BASE%!n!" | |
| break | |
| ) | |
| ) | |
| if "%shadow_volume%"=="" ( | |
| echo\Cannot find snapshot volume. | |
| exit /b 1 | |
| ) | |
| mklink /d "%link%" "%shadow_volume%\" || ( | |
| vssadmin delete shadows "/shadow=%shadow_id%" /quiet | |
| ) | |
| exit /b | |
| :main_remove | |
| set on_error=on_error_exit | |
| if "$~2"=="" goto print_usage %* | |
| set "shadow_id=" | |
| set "shadow_volume=" | |
| set "shadow_drive=" | |
| set "link=%~2" | |
| if "%link:~-1%"=="\" set "link=%link:~0,-1%" | |
| set "link_dir=%~dp2" | |
| set "link_name=%~nx2" | |
| if not exist "%link%" ( | |
| echo\File does not exist. | |
| exit /b | |
| ) | |
| for /f "usebackq tokens=1,2,3,4,*" %%a in ( `dir "%link_dir%"` ) do ( | |
| if "%%c:%%d"=="<SYMLINKD>:%link_name%" ( | |
| set "shadow_volume=%%e" | |
| rem remove square brackets and trailing backslash | |
| set "shadow_volume=!shadow_volume:~1,-2!" | |
| ) | |
| ) | |
| if "%shadow_volume%"=="" ( | |
| echo\File is not a directory symlink. | |
| exit /b 1 | |
| ) | |
| for /f "usebackq tokens=1,* delims=:" %%a in ( `vssadmin list shadows` ) do ( | |
| set "k=%%a" | |
| set "k=!k:%TAB%=!" | |
| set "k=!k: =!" | |
| set "v=%%b" | |
| set "v=!v: =!" | |
| if "!v!"=="%shadow_volume%" ( | |
| set "shadow_id=!q!" | |
| set "shadow_drive=!p:~1,2!" | |
| break | |
| ) | |
| set "q=!p!" | |
| set "p=!v!" | |
| ) | |
| if "%shadow_id%"=="" ( | |
| exit /b 1 | |
| ) | |
| >nul vssadmin delete shadows "/shadow=%shadow_id%" /quiet | |
| rmdir "%link%" | |
| echo\Done. | |
| exit /b | |
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