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tldr/pages/common/sum.md

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sum

Compute checksums and the number of blocks for a file. A predecessor to the more modern cksum. More information: https://www.gnu.org/software/coreutils/manual/html_node/sum-invocation.html.

  • Compute a checksum with BSD-compatible algorithm and 1024-byte blocks:

sum {{path/to/file}}

  • Compute a checksum with System V-compatible algorithm and 512-byte blocks:

sum {{[-s|--sysv]}} {{path/to/file}}