Wednesday, April 11, 2007

Unix : sum

Often transfer large files around using FTP or whatever e.g. ear and war files and it's useful to see if they were transferred without error.

sum is a useful utility to use for this.

It calculates and prints a 16-bit checksum for the named file and the number of 512-byte blocks in the file.

sum abcd.ear
05612 25680


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