diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
index ae62e19..0f4406d 100644
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -1,9 +1,9 @@
 " Vim syntax file
 " Language:		shell (sh) Korn shell (ksh) bash (sh)
-" Maintainer:		Charles E. Campbell  <NdrOchipS@PcampbellAfamily.Mbiz>
+" Maintainer:		Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
 " Previous Maintainer:	Lennart Schultz <Lennart.Schultz@ecmwf.int>
-" Last Change:		Jun 16, 2019
-" Version:		188
+" Last Change:		Oct 16, 2019
+" Version:		189
 " URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_SH
 " For options and settings, please use:      :help ft-sh-syntax
 " This file includes many ideas from Eric Brunet (eric.brunet@ens.fr)
@@ -124,13 +124,14 @@
 if exists("b:is_kornshell") || exists("b:is_bash")
  syn cluster ErrorList add=shDTestError
 endif
-syn cluster shArithParenList	contains=shArithmetic,shCaseEsac,shComment,shDeref,shDo,shDerefSimple,shEcho,shEscape,shNumber,shOperator,shPosnParm,shExSingleQuote,shExDoubleQuote,shHereString,shRedir,shSingleQuote,shDoubleQuote,shStatement,shVariable,shAlias,shTest,shCtrlSeq,shSpecial,shParen,bashSpecialVariables,bashStatement,shIf,shFor
+syn cluster shArithParenList	contains=shArithmetic,shCaseEsac,shComment,shDeref,shDo,shDerefSimple,shEcho,shEscape,shNumber,shOperator,shPosnParm,shExSingleQuote,shExDoubleQuote,shHereString,shRedir,shSingleQuote,shDoubleQuote,shStatement,shVariable,shAlias,shTest,shCtrlSeq,shSpecial,shParen,bashSpecialVariables,bashStatement,shIf,shFor,shFunctionKey,shFunctionOne,shFunctionTwo
 syn cluster shArithList	contains=@shArithParenList,shParenError
 syn cluster shCaseEsacList	contains=shCaseStart,shCaseLabel,shCase,shCaseBar,shCaseIn,shComment,shDeref,shDerefSimple,shCaseCommandSub,shCaseExSingleQuote,shCaseSingleQuote,shCaseDoubleQuote,shCtrlSeq,@shErrorList,shStringSpecial,shCaseRange
 syn cluster shCaseList	contains=@shCommandSubList,shCaseEsac,shColon,shCommandSub,shCommandSubBQ,shComment,shDo,shEcho,shExpr,shFor,shForPP,shHereDoc,shIf,shHereString,shRedir,shSetList,shSource,shStatement,shVariable,shCtrlSeq
 syn cluster shCommandSubList	contains=shAlias,shArithmetic,shCmdParenRegion,shCommandSub,shComment,shCtrlSeq,shDeref,shDerefSimple,shDoubleQuote,shEcho,shEscape,shExDoubleQuote,shExpr,shExSingleQuote,shHereDoc,shNumber,shOperator,shOption,shPosnParm,shHereString,shRedir,shSingleQuote,shSpecial,shStatement,shSubSh,shTest,shVariable
 syn cluster shCurlyList	contains=shNumber,shComma,shDeref,shDerefSimple,shDerefSpecial
-syn cluster shDblQuoteList	contains=shArithmetic,shCommandSub,shCommandSubBQ,shDeref,shDerefSimple,shEscape,shPosnParm,shCtrlSeq,shSpecial,shSpecialDQ
+" COMBAK: removing shEscape fromshDblQuoteList fails ksh04:43
+syn cluster shDblQuoteList	contains=shArithmetic,shCommandSub,shCommandSubBQ,shDeref,shDerefSimple,shPosnParm,shCtrlSeq,shSpecial,shSpecialDQ
 syn cluster shDerefList	contains=shDeref,shDerefSimple,shDerefVar,shDerefSpecial,shDerefWordError,shDerefPSR,shDerefPPS
 syn cluster shDerefVarList	contains=shDerefOff,shDerefOp,shDerefVarArray,shDerefOpError
 syn cluster shEchoList	contains=shArithmetic,shCommandSub,shCommandSubBQ,shDeref,shDerefSimple,shEscape,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shCtrlSeq,shEchoQuote
@@ -147,6 +148,7 @@
 syn cluster shIdList	contains=shCommandSub,shCommandSubBQ,shWrapLineOperator,shSetOption,shComment,shDeref,shDerefSimple,shHereString,shNumber,shOperator,shRedir,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shExpr,shCtrlSeq,shStringSpecial,shAtExpr
 syn cluster shIfList	contains=@shLoopList,shDblBrace,shDblParen,shFunctionKey,shFunctionOne,shFunctionTwo
 syn cluster shLoopList	contains=@shCaseList,@shErrorList,shCaseEsac,shConditional,shDblBrace,shExpr,shFor,shForPP,shIf,shOption,shSet,shTest,shTestOpr,shTouch
+syn cluster shPPSLeftList	contains=shAlias,shArithmetic,shCmdParenRegion,shCommandSub,shCtrlSeq,shDeref,shDerefSimple,shDoubleQuote,shEcho,shEscape,shExDoubleQuote,shExpr,shExSingleQuote,shHereDoc,shNumber,shOperator,shOption,shPosnParm,shHereString,shRedir,shSingleQuote,shSpecial,shStatement,shSubSh,shTest,shVariable
 syn cluster shPPSRightList	contains=shComment,shDeref,shDerefSimple,shEscape,shPosnParm
 syn cluster shSubShList	contains=@shCommandSubList,shCommandSubBQ,shCaseEsac,shColon,shCommandSub,shComment,shDo,shEcho,shExpr,shFor,shIf,shHereString,shRedir,shSetList,shSource,shStatement,shVariable,shCtrlSeq,shOperator
 syn cluster shTestList	contains=shArithmetic,shCharClass,shCommandSub,shCommandSubBQ,shCtrlSeq,shDeref,shDerefSimple,shDoubleQuote,shSpecialDQ,shExDoubleQuote,shExpr,shExSingleQuote,shNumber,shOperator,shSingleQuote,shTest,shTestOpr
@@ -156,8 +158,8 @@
 " Echo: {{{1
 " ====
 " This one is needed INSIDE a CommandSub, so that `echo bla` be correct
-syn region shEcho matchgroup=shStatement start="\<echo\>"  skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()`]"me=e-1 end="\d[<>]"me=e-2 end="\s#"me=e-2 contains=@shEchoList skipwhite nextgroup=shQuickComment
-syn region shEcho matchgroup=shStatement start="\<print\>" skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()`]"me=e-1 end="\d[<>]"me=e-2 end="\s#"me=e-2 contains=@shEchoList skipwhite nextgroup=shQuickComment
+syn region shEcho matchgroup=shStatement start="\<echo\>"  skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()`]"me=e-1 end="\d[<>]"me=e-2 end="#"me=e-1 contains=@shEchoList skipwhite nextgroup=shQuickComment
+syn region shEcho matchgroup=shStatement start="\<print\>" skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()`]"me=e-1 end="\d[<>]"me=e-2 end="#"me=e-1 contains=@shEchoList skipwhite nextgroup=shQuickComment
 syn match  shEchoQuote contained	'\%(\\\\\)*\\["`'()]'
 
 " This must be after the strings, so that ... \" will be correct
@@ -196,7 +198,7 @@
 " Options: {{{1
 " ====================
 syn match   shOption	"\s\zs[-+][-_a-zA-Z#@]\+"
-syn match   shOption	"\s\zs--[^ \t$`'"|);]\+"
+syn match   shOption	"\s\zs--[^ \t$=`'"|);]\+"
 
 " File Redirection Highlighted As Operators: {{{1
 "===========================================
@@ -292,9 +294,12 @@
 "======
 syn match   shWrapLineOperator "\\$"
 syn region  shCommandSubBQ   	start="`" skip="\\\\\|\\." end="`"	contains=shBQComment,@shCommandSubList
-"see ksh13
+"COMBAK: see ksh13:50
 "syn match   shEscape	contained	'\%(^\)\@!\%(\\\\\)*\\.'	nextgroup=shSingleQuote,shDoubleQuote,shComment
+"COMBAK: see sh11:27
 syn match   shEscape	contained	'\%(^\)\@!\%(\\\\\)*\\.'	nextgroup=shComment
+"COMBAK: see ksh13:53
+"syn match   shEscape	contained	'\%(^\)\@!\%(\\\\\)*\\.'
 
 " $() and $(()): {{{1
 " $(..) is not supported by sh (Bourne shell).  However, apparently
@@ -356,6 +361,7 @@
 syn region  shDoubleQuote	matchgroup=shQuote start=+"+ skip=+\\"+ end=+"+		contained contains=@shDblQuoteList,shStringSpecial,@Spell	nextgroup=shSpecialStart
 syn match   shStringSpecial	"[^[:print:] \t]"			contained
 syn match   shStringSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"			nextgroup=shComment
+syn match   shStringSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"
 syn match   shSpecialSQ	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"		contained	nextgroup=shBkslshSnglQuote,@shNoZSList
 syn match   shSpecialDQ	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"		contained	nextgroup=shBkslshDblQuote,@shNoZSList
 syn match   shSpecialStart	"\%(\\\\\)*\\[\\"'`$()#]"			contained	nextgroup=shBkslshSnglQuote,shBkslshDblQuote,@shNoZSList
@@ -527,7 +533,7 @@
  " bash : ${parameter//pattern/string}
  " bash : ${parameter//pattern}
  syn match  shDerefPPS	contained	'/\{1,2}'	nextgroup=shDerefPPSleft
- syn region shDerefPPSleft	contained	start='.'	skip=@\%(\\\\\)*\\/@ matchgroup=shDerefOp	end='/' end='\ze}'	nextgroup=shDerefPPSright	contains=@shCommandSubList
+ syn region shDerefPPSleft	contained	start='.'	skip=@\%(\\\\\)*\\/@ matchgroup=shDerefOp	end='/' end='\ze}'	nextgroup=shDerefPPSright	contains=@shPPSLeftList
  syn region shDerefPPSright	contained	start='.'	skip=@\%(\\\\\)\+@		end='\ze}'				contains=@shPPSRightList
 
  " bash : ${parameter/#substring/replacement}