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$input = $CmdLine $bytes = 1000000 ; 1000000 for 1 MB, 1000 for 1 KB $size = FileGetSize($input) $file = fileopen($input, 16) $max = ceiling($size / $bytes) for $i = 1 to $max $data = fileread($file, $bytes) $output = $input & '_' & $i & 'of' & $max filewrite($output, $data) next ^file split
file path for a 20MB "video.mp4" is input, it will be output as "video.mp4_1of20", "video.mp4_2of20", etc. change $bytes to affect the split files size, this example made them 1MB (10^6 bytes)
$input = $CmdLine $name = stringtrimright($input, 1 + stringlen($input) - stringinstr($input, '_', 0, -1)) $split = stringsplit($input, 'of', 3) $max = $split[ubound($split) - 1] for $i = 1 to $max $in = $name & '_' & $i & 'of' & $max $file = fileopen($in, 16) $data = fileread($file) fileclose($file) filedelete($in) filewrite($name, $data) next ^ file join
file path for any of the "video.mp4_Xof20" segments is input. the "video.mp4_Xof20" segments are read and written to "video.mp4" and then deleted, leaving the newly joined "video.mp4" in the end
i made this today because i had a big file that i couldn't really open. i split it into 1000 chunks to make processing and stuff easier. i've also used it to split files to just under 25MB segments so i can attach and mail big files over gmail which is silly but it worked
I like and have been using TeraCopy, a third party program, for many years. Mostly it is a great program, but it does have some issues. On Windows XP for instance, Thumbs.db files could often hold up a copy or move process until the user manually responded to the error prompt. Some other issues I discuss below.
PLEASE NOTE - I am not related to or affiliated in any way with the 3rd party TeraCopy program developers.
ALSO NOTE - I myself have only tested TeraCopy Cure at this point, on Windows 7 (32 bit), and only with the free version of TeraCopy 2.27.
This program, TeraCopy Cure, is related to another one of my TeraCopy assistant programs, TeraCopy Timer, but aims at being simpler and quicker to use ... if lacking its more advanced features.
TeraCopy Cure is a frontend for TeraCopy and sets out to make up for its flaws and limitations.
One of those flaws is queuing order, and the limitation relates to a same destination issue.
You would think that queue order would be the same as add order, but that is not the case, and if you are doing a mix of COPY and MOVE then the COPY process could easily fail. It could fail with some source items, even if the COPY process has already started before the same source MOVE process begins ... especially if the destination folder is on the source drive ... only the currently copying file is locked to that process.
If you drag and drop another source for a same destination as an existing or impending COPY or MOVE process, then usually TeraCopy nicely adds it for you to that existing job. However, you might wish to avoid that, or it might occur during the testing phase of that active process, and then not be properly processed etc. But you are not given a choice and it just gets added.
HOW TO USE
See the right-click menu of the 'Batch List' (lowest field) and the right-click menu of the Tree field, for some useful options.
(1) If desired, enable 'Auto Start'. NOTE - Even if enabled, this can be bypassed.
(2) Set the destination folder, either by browsing on the tree or by dragging a folder to the Destination input field or label. Right-clicking on a folder in Explorer will also work, if enabled. The destination folder path will also show in the Tree if that right-click option is enabled.
(3) Then drag & drop source file or folder onto one of three five areas - Folder (Drive) Tree field, or COPY or MOVE buttons ... this now also includes the source input and label.
NOTE - If the Folder (Drive) Tree field is used, then you will additionally need to click either the COPY or MOVE button, to have that job added to the Batch List ... but this avoids 'Auto Start' if it is enabled. Drag & dropping to the buttons instead, saves on clicking, but starts the first job etc immediately if 'Auto Start' is enabled.
(4) If needed and ready, click the START button to run the first job and those that follow.
More information is included in program and in the NOTES etc sections below.
WARNING - Depending on the amount of content on your destination drive, and folder level depth, and the speed of your PC, display of the full path in the Folder (Drive) Tree can take a while to show ... if you have that (right-click) option enabled ... it isn't by default. I found this feature quite tricky to get right, and I'm still not 100% sure it is now full-proof.
TeraCopy Cure v1.5.zip (source is included)
TeraCopy Cure v1.6.zip (source is included)
#include <WinAPI.au3> $text = FileReadLastChars("C:\Program Files\AutoIt3\Include\Array.au3", 1024) MsgBox(0, 'FileReadLastChars', $text) Func FileReadLastChars($sFile, $nChars) Local $nBytes $tBuffer = DLLStructCreate("char["&$nChars&"]") $hFile = _WinAPI_CreateFile($sFile, 2, 2) ; open for read _WinAPI_SetFilePointer($hFile, -1 * $nChars, 2) ; from end _WinAPI_ReadFile($hFile, DLLStructGetPtr($tBuffer), $nChars, $nBytes) _WinAPI_CloseHandle($hFile) Return DLLStructGetData($tBuffer, 1) EndFunc ; included as standard UDF since AutoIt 188.8.131.52 version Func _WinAPI_SetFilePointer($hFile, $iPos, $iMethod = 0) $aResult = DllCall( "kernel32.dll", "long", "SetFilePointer", "hwnd", $hFile, "long", $iPos, "long_ptr", 0, "long", $iMethod) If @error Then Return SetError(1, 0, -1) If $aResult = -1 Then Return SetError(2, 0, -1) ; $INVALID_SET_FILE_POINTER = -1 Return $aResult EndFunc ;==>_WinAPI_SetFilePointer Here is my topic about _WinAPI_SetFilePointer()
EDIT: simpler version compatible with latest AutoIt
$text = FileReadLastChars("C:\Program Files\AutoIt3\Include\Array.au3", 1024) MsgBox(0, 'FileReadLastChars', $text) Func FileReadLastChars($sFile , $nChars) $hFile = FileOpen($sFile, 0) ; open for read FileSetPos($hFile, -1 * $nChars, 2) ; from end $sRet = FileRead($hFile) FileClose($hFile) Return $sRet EndFunc
I know this has been done to death in many programming languages and probably even in AutoIt.
But couldn't help myself and as a learning challenge I wrote "yet another converter" LOL
I need your help to test it and show me "the error of my ways" but in a nutshell here's what it can do already (taken from my source file) :
Converts all zip files recursively into a 7Zip file, with max compression REQUIRES AUTOIT Version 184.108.40.206 + Exact copy with attributes and folder structure + Extensive error checking, including files blocked by anti-virus (by file count) + Can stop process and restart later with the use of a log file + Can pause process (but in between compressing / extracting files) + Creates a .CSV file that can be used to check on compression ratios + Dynamic GUI that enables user to see console while 7zip is working + Gui can be stretched horizontally for long filenames + Up to 5 retries while transfering compressed files + Checks free space (at startup) to make sure you don't kill your OS LOL + Have converted 10,000+ files with no issues in file integrity. + Open to suggestions and program free to modify to your liking + Will eventually be fully modular and configurable (if there is interest for this) + Exit codes so you can have an idea where program went wrong (if it did) + Fully commented so users can tinker away. - Cannot save archive comments. - Not FULLY tested yet, do not use on .zip files that have no backups The program also has a very minimal GUI that can be stretched. Not a huge fan of million-button interfaces.
I also assume some people running this program will have a 1024x768 monitor so the GUI is made accordingly.
There is no way I am keeping this script for myself. If this is useful to anybody, feel free to use it and modify it. All I ask is you credit me (as I will credit those who contribute).
Now here's the issues that are left to fix. Any help is greatly appreciated and I will add your name in the credits if you so wish.
- For some reason while compression is under way, all my current explorer windows flicker; notably the cut-and-paste part. I can't seem to narrow it down.
- Also context menu is closed in explorer every time program compresses / extracts a new file
- I've added support for retries if, for some reason, AutoIt can't move the converted file. This happened once after 5000-6000 conversions. Now that I've programmed the retries, the process is somewhat slower. It shouldn't affect speed though.
- After compressing 10,000+ files (Yes I have that many zip files! Think Mame) I've had a system meltdown. There's a leak somewhere. Am I supposed to close something and I'm not? I've added _IsPressed() lately so closing that .DLL is not the cause of this leak.
- Subtracting one array from another was a tricky thing to program (happens when user stops and restarts process), if you can think of a faster way I'm all in.
Obviously if you find bugs or have suggestions, I'm all ears.
Changelog is included in the source file, including credits.
PLEASE DON'T CONVERT ALL YOUR FILES YET. It's not fully tested (well I tested it but I need others to test too).
For my next project I would like to send files with "alternate data streams" by email in ZIP format.
I can not use any external program like 7-Zip or WinRAR. (They would fit😥)
Who knows how to create a ZIP file with "alternate data streams" included with the Powershell command "Compress-Archive"?
Here a test script: (save as "ADSTester.cmd")
@rem Try to create a zip file with alternate data streams (ADS) included @rem Housekeeping @cls @del ADSTester.zip >nul: @RD /S /Q Extracted >nul: @del ADSTester.txt >nul: @rem End of Housekeeping echo This is the ADSTester.txt file >ADSTester.txt echo This is the ADSTester.txt:Part1 file >ADSTester.txt:Part1 echo This is the ADSTester.txt:Part2 file >ADSTester.txt:Part2 dir /r ADSTester.txt @rem See the 3 files @rem **************************************************************** @rem **************************************************************** @rem Please alter the next lines to include the alternate data streams. powershell Compress-Archive -Path .\ADSTester.txt -Update -DestinationPath ADSTester.zip powershell Expand-Archive -Path ADSTester.zip -DestinationPath .\Extracted\ dir /r Extracted\ADSTester.txt @rem Only one file left :-( pause