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Some filesystems have 2GB limits, so this can be useful when burning to DVD or copying to FAT32. This splits a bigfile into many smallfiles of 2 GB each (2048 MB):

 split --bytes=2048m bigfile smallfile

Use `cat` to merge the smallfiles back:

 cat smallfile* > bigfile

or from a Windows cmd shell:

 copy /b smallfile* bigfile