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How can I compare a full directory's checksum between platforms?
I have a directory full of files and subdirectories on a Win7 machine. I want to archive them, so I compress and move them to archival storage. Before compression, I use the CRC context menu to ...
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Calculate SHA1 of CD-ROM on MacOS X
How do you calculate the sha1 of a CD-ROM disc under MacOS X?
On Linux (RedHat) I use sha1sum /dev/cdrom.
How do I do the same thing on Mac using openssl sha1?