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- SUM(1L) SUM(1L)
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- NNAAMMEE
- cksum - checksum and count the bytes in a file
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- SSYYNNOOPPSSIISS
- cckkssuumm [--help] [--version] [file...]
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- DDEESSCCRRIIPPTTIIOONN
- This manual page documents the GNU version of cckkssuumm.
- cckkssuumm 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 the CRC for
- each file along with the number of bytes in the file, and
- the file name unless no arguments were given.
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- cckkssuumm is typically used to make sure that files have been
- transferred by unreliable means (such as netnews) have not
- been corrupted, by comparing the cckkssuumm output for the
- received files with the cckkssuumm output for the original
- files. The CRC algorithm is specified by the POSIX.2
- standard. It is not compatible with the BSD or System V
- ssuumm programs; it is more robust.
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- _-_-_h_e_l_p Print a usage message and exit with a non-zero sta-
- tus.
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- _-_-_v_e_r_s_i_o_n
- Print version information on standard error then
- exit.
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- FSF GNU Text Utilities 1
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