install.sub uses [[ foo == f*o ]] extensively, yet ksh(1) only documents pattern matching for the = and != operators.
Just like with [, = and == behave the same in [[ last time I checked. $ [[ foo = f*o ]] && echo match match $ [[ foo == f*o ]] && echo match match Feedback? OK? Index: ksh.1 =================================================================== RCS file: /cvs/src/bin/ksh/ksh.1,v retrieving revision 1.216 diff -u -p -r1.216 ksh.1 --- ksh.1 31 Mar 2022 17:27:14 -0000 1.216 +++ ksh.1 13 Sep 2022 19:18:24 -0000 @@ -745,6 +745,7 @@ Operators (e.g.\& must be unquoted. .It The second operand of the +.Sq == , .Sq != and .Sq =