MAN page from Old RedHat 5.X textutils-1.22-5.i386.rpm

CKSUM

Section: User Commands (1)
Updated: GNU Text Utilities
Index

NAME

cksum - checksum and count the bytes in a file

SYNOPSIS

cksum[--help] [--version] [file...]

DESCRIPTION

This documentation is no longer being maintained and may be inaccurateor incomplete. The Texinfo documentation is now the authoritative source.

This manual pagedocuments the GNU version ofcksum.cksumcomputes a cyclic redundancy check (CRC) for each named file, or thestandard input if none are given or when a file named `-' is given.It prints the CRC for each file along with the number of bytes in thefile, and the file name unless no arguments were given.

cksumis typically used to make sure that files have been transferredby unreliable means (such as netnews) have not been corrupted, bycomparing thecksumoutput for the received files with thecksumoutput for the original files.The CRC algorithm is specified by the POSIX.2 standard. It isnot compatible with the BSD or System Vsumprograms; it is more robust.

--help: Print a usage message and exit with a status code indicating success.
--version: Print version information on standard output then exit.

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