*sum: update pages to make them consistent (#10136)

* *sum: update pages to make them consistent

* md5sum: fix typo, shasum: change 'the' to 'a' for consistency

pages/common/b3sum.md

@@ -1,25 +1,24 @@
 # b3sum
 
-> Command line utility for calculating BLAKE3 hashes.
-> It is similar to Coreutils tools like b2sum or md5sum.
+> Calculate BLAKE3 cryptographic checksums.
 > More information: <https://github.com/BLAKE3-team/BLAKE3/tree/master/b3sum>.
 
-- Calculate the BLAKE3 checksum for a file:
+- Calculate the BLAKE3 checksum for one or more files:
 
-`b3sum {{path/to/file}}`
+`b3sum {{path/to/file1 path/to/file2 ...}}`
 
-- Calculate BLAKE3 checksums for multiple files:
+- Calculate and save the list of BLAKE3 checksums to a file:
 
-`b3sum {{path/to/file1}} {{path/to/file2}}`
+`b3sum {{path/to/file1 path/to/file2 ...}} > {{path/to/file.b3}}`
 
-- Calculate the BLAKE3 checksum from `stdin`:
+- Calculate a BLAKE3 checksum from `stdin`:
 
 `{{some_command}} | b3sum`
 
-- Create a file of BLAKE3 checksums:
-
-`b3sum {{path/to/file}} > {{path/to/file.b3}}`
-
-- Read and verify a file of BLAKE3 checksums:
+- Read a file of BLAKE3 sums and filenames and verify all files have matching checksums:
 
 `b3sum --check {{path/to/file.b3}}`
+
+- Only show a message for missing files or when verification fails:
+
+`b3sum --check --quiet {{path/to/file.b3}}`