cmp: refresh page (#7822)

pages/common/cmp.md

@@ -3,10 +3,18 @@
 > Compare two files byte by byte.
 > More information: <https://www.gnu.org/software/diffutils/manual/html_node/Invoking-cmp.html>.
 
-- Find the byte and line number of the first difference between two files:
+- Output char and line number of the first difference between two files:
 
 `cmp {{path/to/file1}} {{path/to/file2}}`
 
-- Find the byte number and differing bytes of every difference:
+- Output info of the first difference: char, line number, bytes, and values:
 
-`cmp -l {{path/to/file1}} {{path/to/file2}}`
+`cmp --print-bytes {{path/to/file1}} {{path/to/file2}}`
+
+- Output the byte numbers and values of every difference:
+
+`cmp --verbose {{path/to/file1}} {{path/to/file2}}`
+
+- Compare files but output nothing, yield only the exit status:
+
+`cmp --quiet {{path/to/file1}} {{path/to/file2}}`