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cksum: Print CRC checksum and byte counts
cksum computes a cyclic redundancy check (CRC) checksum for each
given file, or standard input if none are given or for a
file of `-'. Synopsis:
cksum [option]... [file]...
cksum prints the CRC checksum for each file along with the number
of bytes in the file, and the filename unless no arguments were given.
cksum is typically used to ensure that files
transferred by unreliable means (e.g., netnews) have not been corrupted,
by comparing the
cksum output for the received files with the
cksum output for the original files (typically given in the
The CRC algorithm is specified by the POSIX standard. It is not
compatible with the BSD or System V
sum algorithms (see the
previous section); it is more robust.
The only options are `--help' and `--version'. See section 2. Common options.
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