diff --git a/src/cmd/ksh93/data/builtins.c b/src/cmd/ksh93/data/builtins.c
index 148e91ae3..6f806d6ca 100644
--- a/src/cmd/ksh93/data/builtins.c
+++ b/src/cmd/ksh93/data/builtins.c
@@ -248,7 +248,6 @@ const char sh_set[] =
 			"be zero if all commands return zero exit status.]"
 		"[+posix?Enable full POSIX standard compliance mode.]"
 		"[+privileged?Equivalent to \b-p\b.]"
-		"[+rc?Do not run the \b.kshrc\b file for interactive shells.]"
 		"[+showme?Simple commands preceded by a \b;\b will be traced "
 			"as if \b-x\b were enabled but not executed.]"
 		"[+trackall?Equivalent to \b-h\b.]"
@@ -1527,14 +1526,10 @@ const char sh_optksh[] =
 "[+DESCRIPTION?\b\f?\f\b is a command language interpreter that "
 	"executes commands read from a command line string, the "
 	"standard input, or a specified file.]"
-"[+?If the \b-i\b option is present, or there are no \aarg\as and "
+"[+?If the \b-i\b option is specified, or there are no \aarg\as and "
 	"the standard input and standard error are attached to a "
 	"terminal, the shell is considered to be interactive.]"
-"[+?The \b-s\b and \b-c\b options are mutually exclusive.  If the \b-c\b "
-	"option is specified, the first \aarg\a is the command-line string "
-	"and must be specified.  Any remaining \aarg\as will be used "
-	"to initialize \b$0\b and positional parameters.]" 
-"[+?If the neither \b-s\b nor \b-c\b is specified, then the first \barg\b "
+"[+?If neither \b-s\b nor \b-c\b is specified, then the first \barg\b "
 	"will be the pathname of the file containing commands and \b$0\b "
 	"will be set to this value.  If there is no file with this pathname, "
 	"and this pathname does not contain a \b/\b, then the \bPATH\b "
@@ -1542,7 +1537,14 @@ const char sh_optksh[] =
 	"\aarg\as will be used to initialize the positional parameters.]"
 "[+?Any option can use a \b+\b instead of a \b-\b to disable the corresponding "
 	"option.]"
-"[c?Read the commands from the first \aarg\a.]"
+"[c?Read and execute a script from the first \aarg\a instead of a file. "
+	"The second \aarg\a, if present, becomes that script's command name (\b$0\b). "
+	"Any third and further \aarg\as become positional parameters starting at \b$1\b.]"
+"[s?Read and execute a script from standard input instead of a file. "
+	"The command name (\b$0\b) cannot be set. "
+	"Any \aarg\as become the positional parameters starting at \b$1\b. "
+	"This option is forced on if no \aarg\a is given "
+	"and is ignored if \b-c\b is also specified.]"
 "[i?Specifies that the shell is interactive.]"
 "[l?Invoke the shell as a login shell; \b/etc/profile\b and \b$HOME/.profile\b, "
 	"if they exist, are read before the first command.]"
@@ -1558,8 +1560,6 @@ const char sh_optksh[] =
 		"\bbuiltin\b.]"
 	"[+-?Executing \bcommand -p\b \a...\a .]"
 	"}"
-"[s?Read the commands from standard input.  The positional parameters will be "
-	"initialized from \aarg\a. This option is forced on if no \aarg\a is given.]"
 "[D\f:dump-strings\f?Do not execute the script, but output the set of double "
 	"quoted strings preceded by a \b$\b.  These strings are needed for "
 	"localization of the script to different locales.]"
diff --git a/src/cmd/ksh93/sh.1 b/src/cmd/ksh93/sh.1
index 50054474e..ce8e1c803 100644
--- a/src/cmd/ksh93/sh.1
+++ b/src/cmd/ksh93/sh.1
@@ -8250,37 +8250,48 @@ when the locale is not C or POSIX.
 No commands will be executed.
 .PD
 .TP 8
-.B \-E
-Reads the file named by the
+.BR \-E \ or\  \-o\ rc \ or\  \-\-rc
+Read the file named by the
 .B ENV
 variable or by
 .B \s-1$HOME\s+1/\f3.\fPkshrc
 if not defined after the profiles.
+On by default for interactive shells. Use
+.BR +E ,
+.B +o\ rc
+or
+.B \-\-norc
+to turn off.
 .TP 8
 .BI \-c
-If the
+Read and execute a script from the first
+.I arg
+instead of a file.
+The second
+.IR arg ,
+if present, becomes that script's command name
+.RB ( $0 ).
+Any third and further
+.IR arg s
+become positional parameters starting at
+.BR $1 .
+.TP
+.B \-s
+Read and execute a script from standard input instead of a file.
+The command name
+.RB ( $0 )
+cannot be set.
+Any
+.IR arg s
+become the positional parameters starting at
+.BR $1 .
+This option is forced on if no
+.I arg
+is given and is ignored if
 .B \-c
-option is present, then
-commands are read from the first
-.IR arg .
-Any remaining arguments become
-positional parameters starting at
-.BR 0 .
+is also specified.
 .TP
-.B \-s
-If the
-.B \-s
-option is present or if no
-arguments remain,
-then commands are read from the standard input.
-Shell output,
-except for the output of the
-.I Special Commands\^
-listed above,
-is written to
-file descriptor 2.
-.TP
-.B \-i
+.BR \-i \ or\  \-o\ interactive \ or\  \-\-interactive
 If the
 .B \-i
 option is present or
@@ -8295,7 +8306,7 @@ does not kill an interactive shell) and \s-1INTR\s+1 is caught and ignored
 is interruptible).
 In all cases, \s-1QUIT\s+1 is ignored by the shell.
 .TP
-.B \-r
+.BR \-r \ or\  \-o\ restricted \ or\  \-\-restricted
 If the
 .B \-r
 option is present, the shell is a restricted shell.