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SIZE is the number of gigabytes and the file name is at the end. Random data is generated by encrypting /dev/zero, similar to other techniques posted on here.
Does a search and replace across multiple files with a subgroup replacement.
I've kept the gzip compression at a low level, but depending on the cpu power available on the source machine you may want to increase it. However, SQL compresses really well, and I found even with -1 I was able to transfer 40 MiB/s over a 100 mbps wire, which was good enough for me.
I used this because I needed to sort the content of a bunch of gzipped log files. Replace sort with something else, or simply remove sort to just rezip everything