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Calculate CRC32 checksums with cksum
An even simple way of doing it is to use awk instead:
Calculate CRC32 checksums with cksum
doesn't work for me. It looks like it hits an overflow at 2147483647 or 0x7fffffff
Calculate CRC32 checksums with cksum
I did use awk first for this purpose but seemed it has a max integer limit at 0x7FFFFFFF, ie 2147483647..
Calculate CRC32 checksums with cksum
Within limits you can trick awk past its integer maximum:
Calculate CRC32 checksums with cksum
Sorry, that should be
Calculate CRC32 checksums with cksum
I usually use bc with obase = 16, for this;
perl ought to be an option too.
Calculate CRC32 checksums with cksum
checkSum+ from http://homepage.mac.com/julifos/soft/checksum/ is a frontend for this and other checksum algorithms. It, too, outputs in hex, using cksum and awk. I'm not sure exactly how, but I think it has avoided such a problem, because I have successfully used it for files large and small.
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