mirror of
https://github.com/tldr-pages/tldr.git
synced 2025-04-29 23:24:55 +02:00
8d938aa13d
* *sum: update pages to make them consistent * shasum: remove redundant option * shasum: update page
32 lines
1,001 B
Markdown
32 lines
1,001 B
Markdown
# sha256sum
|
|
|
|
> Calculate SHA256 cryptographic checksums.
|
|
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html>.
|
|
|
|
- Calculate the SHA256 checksum for one or more files:
|
|
|
|
`sha256sum {{path/to/file1 path/to/file2 ...}}`
|
|
|
|
- Calculate and save the list of SHA256 checksums to a file:
|
|
|
|
`sha256sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.sha256}}`
|
|
|
|
- Calculate a SHA256 checksum from `stdin`:
|
|
|
|
`{{command}} | sha256sum`
|
|
|
|
- Read a file of SHA256 checksums and filenames and verify all files have matching checksums:
|
|
|
|
`sha256sum --check {{path/to/file.sha256}}`
|
|
|
|
- Only show a message for missing files or when verification fails:
|
|
|
|
`sha256sum --check --quiet {{path/to/file.sha256}}`
|
|
|
|
- Only show a message when verification fails, ignoring missing files:
|
|
|
|
`sha256sum --ignore-missing --check --quiet {{path/to/file.sha256}}`
|
|
|
|
- Check a known SHA256 checksum of a file:
|
|
|
|
`echo {{known_sha256_checksum_of_the_file}} {{path/to/file}} | sha256sum --check`
|