A checksum or hash sum is a small-size datum from a block of digital data for the purpose of detecting errors which may have been introduced during its transmission or storage. It is usually applied to an installation file after it is received from the download server. By themselves checksums are often used to verify data integrity, but should not be relied upon to also verify data authenticity.


Cksum cksum – checksum and count the bytes in a file SYNOPSIS cksum [–help] [–version] [file…] DESCRIPTION This manual page documents the GNU version of cksum. cksum computes a cyclic redundancy check (CRC) for each named file, or the standard input if none are given or when a file named `-‘ is given. It prints […]