Split binary file...

Condor06

Is there some simple way to split a big binary file (over 500 MBs) into the smaller parts, and after join them back to primordial original file?

bvdet

I split a JPEG file and successfully joined the parts with the following code:

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 fn = 'image.jpg'
 
# Split into 4 files

f = open(fn, 'rb')

data = f.read()

f.close()
 
bytes = len(data)

inc = (bytes+4)/4

fileNames = []

for i in range(0, bytes+1, inc):

    fn1 = "file%s" % i

    fileNames.append(fn1)

    f = open(fn1, 'wb')

    f.write(data[i:i+inc])

    f.close()
 
new_file = 'image_joined.jpg'

dataList = []
 
for fn in fileNames:

    f = open(fn, 'rb')

    dataList.append(f.read())

    f.close()
 
f = open(new_file, 'wb')

for data in dataList:

    f.write(data)

f.close()

Condor06

Thanks very much, @bvdet, I will try this code...

Condor06

Very useful code, works for me (even on the large files), fast and simple!
Thanks one more time...

King regards,
Stole

bvdet

You are welcome! I am glad it works for you.

-BV

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