sha*: add --quiet option example

pages/common/sha1sum.md

@@ -13,3 +13,7 @@
 - Read a file of SHA1 sums and verify all files have matching checksums:
 
 `sha1sum -c {{filename.sha1}}`
+
+- Verify all files have matching chesksums but don't print OK for succefully verified file:
+
+`sha1sum -c --quiet {{filename.sha1}}`

pages/common/sha224sum.md

@@ -13,3 +13,7 @@
 - Read a file of SHA224 sums and verify all files have matching checksums:
 
 `sha224sum -c {{filename.sha224}}`
+
+- Verify all files have matching chesksums but don't print OK for succefully verified file:
+
+`sha224sum -c --quiet {{filename.sha224}}`

pages/common/sha384sum.md

@@ -13,3 +13,7 @@
 - Read a file of SHA384 sums and verify all files have matching checksums:
 
 `sha384sum -c {{filename.sha384}}`
+
+- Verify all files have matching chesksums but don't print OK for succefully verified file:
+
+`sha384sum -c --quiet {{filename.sha384}}`

pages/common/sha512sum.md

@@ -13,3 +13,7 @@
 - Read a file of SHA512 sums and verify all files have matching checksums:
 
 `sha512sum -c {{filename.sha512}}`
+
+- Verify all files have matching chesksums but don't print OK for succefully verified file:
+
+`sha512sum -c --quiet {{filename.sha512}}`

pages/common/shasum.md

@@ -18,6 +18,10 @@
 
 `shasum --check {{list_file}}`
 
+- Check a list of sums but don't print OK for each successfully verified file:
+
+`shasum -c -q {{list_file}}`
+
 - Calculate the SHA1 checksum from `stdin`:
 
 `{{somecommand}} | shasum`