There's a million programs out there which will take a large file and split it up in 500 MB increments, but I'd like to split up a large text file (or binary file) and search for header text.
For example, if I have a text file like this:
NEWFILE:The rain in Spain falls mainly on the plain.NEWFILE:Some people just want to watch the world burn.NEWFILE:When is a door not a door?
I want 3 files to be output with the following text in them:
The rain in Spain falls mainly on the plain.
Some people just want to watch the world burn.
When is a door not a door?
There has got to be an easy way to do this that someone has already come up with.
"Parliamentary inquiry, Mr. Chairman - do we have to call the Gentleman a gentleman if he's not one?"
This would be easy to do with probably any scripting language ... otherwise it'd be easy enough to throw together a simple C program for it.
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Well it should be pretty easy to program yourself. You just gotta know how the header looks like*. Because individual files have an EOF Marker, which can obviously not be inside the large file to separate the subfiles.
* And that's why there's probably no program that does that yet, because every file(type) has a different header, if it has one at all.
But I'm assuming you know what's inside the large file so it should be doable.
An artist's depiction of an Extended Unit Death
Yeah, it's a trivial implementation. You could go and download
LinqPad and then throw a few C# statements into it:
string text = File.ReadAllText(@"C:\path\to\file.txt");
string delimiter = "NEWFILE:";
string[] splits = Regex.Split(text, delimiter);
for (int i = 0; i < splits.Length; i++)
{
if (!string.IsNullOrEmpty(splits[i]))
{
File.WriteAllText(@"C:\path\to\file_" + i + ".txt", splits[i]);
}
}
But I went ahead and made a GUI for you in case you don't want to bother with all that. See attached. (Haven't tested it with non-text files, though.)
Attachments:
