mirror of
https://github.com/ivuorinen/cheatsheet-tldr.git
synced 2026-01-26 11:33:59 +00:00
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
---
|
|
syntax: markdown
|
|
tags: [tldr, common]
|
|
source: https://github.com/tldr-pages/tldr.git
|
|
---
|
|
# sha512sum
|
|
|
|
> Calculate SHA512 cryptographic checksums.
|
|
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html>.
|
|
|
|
- Calculate the SHA512 checksum for one or more files:
|
|
|
|
`sha512sum {{path/to/file1 path/to/file2 ...}}`
|
|
|
|
- Calculate and save the list of SHA512 checksums to a file:
|
|
|
|
`sha512sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.sha512}}`
|
|
|
|
- Calculate a SHA512 checksum from `stdin`:
|
|
|
|
`{{command}} | sha512sum`
|
|
|
|
- Read a file of SHA512 checksums and filenames and verify all files have matching checksums:
|
|
|
|
`sha512sum {{[-c|--check]}} {{path/to/file.sha512}}`
|
|
|
|
- Only show a message for missing files or when verification fails:
|
|
|
|
`sha512sum {{[-c|--check]}} --quiet {{path/to/file.sha512}}`
|
|
|
|
- Only show a message when verification fails, ignoring missing files:
|
|
|
|
`sha512sum --ignore-missing {{[-c|--check]}} --quiet {{path/to/file.sha512}}`
|
|
|
|
- Check a known SHA512 checksum of a file:
|
|
|
|
`echo {{known_sha512_checksum_of_the_file}} {{path/to/file}} | sha512sum {{[-c|--check]}}`
|