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SUM(1) User Commands SUM(1) NAME sum - checksum and count the blocks in a file SYNOPSIS sum [OPTION]... [FILE]... DESCRIPTION Print or check BSD (16-bit) checksums. With no FILE, or when FILE is -, read standard input. -r use BSD sum algorithm (the default), use 1K blocks -s, --sysv use System V sum algorithm, use 512 bytes blocks --help display this help and exit --version output version information and exit AUTHOR Written by Kayvan Aghaiepour and David MacKenzie. REPORTING BUGS Report bugs to: bug-coreutils@gnu.org GNU coreutils home page: <https://www.gnu.org/software/coreutils/> General help using GNU software: <https://www.gnu.org/gethelp/> Report any translation bugs to <https://translationproject.org/team/> COPYRIGHT Copyright (C) 2025 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO Full documentation <https://www.gnu.org/software/coreutils/sum> or available locally via: info '(coreutils) sum invocation' GNU coreutils 9.9 November 2025 SUM(1)
NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO
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