diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
index 6ef5bf0..c51bd9a 100644
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -2,8 +2,8 @@
 " Language:		shell (sh) Korn shell (ksh) bash (sh)
 " Maintainer:		Charles E. Campbell  <NdrOchipS@PcampbellAfamily.Mbiz>
 " Previous Maintainer:	Lennart Schultz <Lennart.Schultz@ecmwf.int>
-" Last Change:		Apr 11, 2016
-" Version:		147
+" Last Change:		May 02, 2016
+" Version:		151
 " 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)
@@ -18,19 +18,25 @@
 
 " trying to answer the question: which shell is /bin/sh, really?
 " If the user has not specified any of g:is_kornshell, g:is_bash, g:is_posix, g:is_sh, then guess.
-if !exists("g:is_kornshell") && !exists("g:is_bash") && !exists("g:is_posix") && !exists("g:is_sh")
+if getline(1) =~ '\<ksh$'
+ let b:is_kornshell = 1
+elseif getline(1) =~ '\<bash$'
+ let b:is_bash      = 1
+elseif getline(1) =~ '\<dash$'
+ let b:is_posix     = 1
+elseif !exists("g:is_kornshell") && !exists("g:is_bash") && !exists("g:is_posix") && !exists("g:is_sh")
  let s:shell = ""
  if executable("/bin/sh")
   let s:shell = resolve("/bin/sh")
  elseif executable("/usr/bin/sh")
   let s:shell = resolve("/usr/bin/sh")
  endif
- if     s:shell =~ 'bash$'
-  let g:is_bash= 1
- elseif s:shell =~ 'ksh$'
-  let g:is_kornshell = 1
+ if     s:shell =~ 'ksh$'
+  let b:is_kornshell= 1
+ elseif s:shell =~ 'bash$'
+  let b:is_bash = 1
  elseif s:shell =~ 'dash$'
-  let g:is_posix = 1
+  let b:is_posix = 1
  endif
  unlet s:shell
 endif
@@ -86,8 +92,12 @@
 endif
 
 " set up the syntax-highlighting iskeyword
-if has("patch-7.4.1141")
- exe "syn iskeyword ".&iskeyword.",-"
+if has("patch-7.4.1142")
+ if exists("b:is_bash")
+  exe "syn iskeyword ".&iskeyword.",-,:"
+ else
+  exe "syn iskeyword ".&iskeyword.",-"
+ endif
 endif
 
 " Set up folding commands for shell {{{1
@@ -140,6 +150,7 @@
 syn cluster shIdList	contains=shCommandSub,shWrapLineOperator,shSetOption,shDeref,shDerefSimple,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 shPPSRightList	contains=shComment,shDeref,shDerefSimple,shEscape,shPosnParm
 syn cluster shSubShList	contains=@shCommandSubList,shCaseEsac,shColon,shCommandSub,shComment,shDo,shEcho,shExpr,shFor,shIf,shRedir,shSetList,shSource,shStatement,shVariable,shCtrlSeq,shOperator
 syn cluster shTestList	contains=shCharClass,shCommandSub,shCtrlSeq,shDeref,shDerefSimple,shDoubleQuote,shExDoubleQuote,shExpr,shExSingleQuote,shNumber,shOperator,shSingleQuote,shTest,shTestOpr
 
@@ -213,14 +224,15 @@
 syn region shExpr	matchgroup=shRange start="\[" skip=+\\\\\|\\$\|\[+ end="\]" contains=@shTestList,shSpecial
 syn region shTest	transparent matchgroup=shStatement start="\<test\s" skip=+\\\\\|\\$+ matchgroup=NONE end="[;&|]"me=e-1 end="$" contains=@shExprList1
 syn region shNoQuote	start='\S'	skip='\%(\\\\\)*\\.'	end='\ze\s'	contained
+syn match  shAstQuote	contained	'\*\ze"'	nextgroup=shString
 syn match  shTestOpr	contained	'[^-+/%]\zs=' skipwhite nextgroup=shTestDoubleQuote,shTestSingleQuote,shTestPattern
 syn match  shTestOpr	contained	"<=\|>=\|!=\|==\|=\~\|-.\>\|-\(nt\|ot\|ef\|eq\|ne\|lt\|le\|gt\|ge\)\>\|[!<>]"
 syn match  shTestPattern	contained	'\w\+'
-syn region shTestDoubleQuote	contained	start='\%(\%(\\\\\)*\\\)\@<!"' skip=+\\\\\|\\"+ end='"'
+syn region shTestDoubleQuote	contained	start='\%(\%(\\\\\)*\\\)\@<!"' skip=+\\\\\|\\"+ end='"'	contains=shDeref,shDerefSimple,shDerefSpecial
 syn match  shTestSingleQuote	contained	'\\.'
 syn match  shTestSingleQuote	contained	"'[^']*'"
 if exists("b:is_kornshell") || exists("b:is_bash")
- syn region  shDblBrace matchgroup=Delimiter start="\[\["	skip=+\%(\\\\\)*\\$+ end="\]\]"	contains=@shTestList,shNoQuote,shComment
+ syn region  shDblBrace matchgroup=Delimiter start="\[\["	skip=+\%(\\\\\)*\\$+ end="\]\]"	contains=@shTestList,shAstQuote,shNoQuote,shComment
  syn region  shDblParen matchgroup=Delimiter start="(("	skip=+\%(\\\\\)*\\$+ end="))"	contains=@shTestList,shComment
 endif
 
@@ -313,7 +325,9 @@
 syn match   shSource	"\s\.\s"
 "syn region  shColon	start="^\s*:" end="$" end="\s#"me=e-2 contains=@shColonList
 "syn region  shColon	start="^\s*\zs:" end="$" end="\s#"me=e-2
-syn match   shColon	'^\s*\zs:'
+if exists("b:is_kornshell")
+ syn match   shColon	'^\s*\zs:'
+endif
 
 " String And Character Constants: {{{1
 "================================
@@ -404,21 +418,21 @@
 endif
 
 if exists("b:is_bash")
- ShFoldFunctions syn region shFunctionOne	matchgroup=shFunction start="^\s*\h[-a-zA-Z_0-9]*\s*()\_s*{"		end="}"	contains=@shFunctionList			skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionTwo	matchgroup=shFunction start="\<[^d][^o]\&\h[-a-zA-Z_0-9]*\s*\%(()\)\=\_s*{"	end="}"	contains=shFunctionKey,@shFunctionList contained	skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionThree	matchgroup=shFunction start="^\s*\h[-a-zA-Z_0-9]*\s*()\_s*("		end=")"	contains=@shFunctionList			skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionFour	matchgroup=shFunction start="\<[^d][^o]\&\h[-a-zA-Z_0-9]*\s*\%(()\)\=\_s*)"	end=")"	contains=shFunctionKey,@shFunctionList contained	skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionOne	matchgroup=shFunction start="^\s*[A-Za-z_0-9:][-a-zA-Z_0-9:]*\s*()\_s*{"		end="}"	contains=@shFunctionList		 skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionTwo	matchgroup=shFunction start="\%(do\)\@!\&\<[A-Za-z_0-9:][-a-zA-Z_0-9:]*\>\s*\%(()\)\=\_s*{"	end="}"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionThree	matchgroup=shFunction start="^\s*[A-Za-z_0-9:][-a-zA-Z_0-9:]*\s*()\_s*("		end=")"	contains=@shFunctionList		 skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionFour	matchgroup=shFunction start="\%(do\)\@!\&\<[A-Za-z_0-9:][-a-zA-Z_0-9:]*\>\s*\%(()\)\=\_s*)"	end=")"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
 else
- ShFoldFunctions syn region shFunctionOne	matchgroup=shFunction start="^\s*\h\w*\s*()\_s*{"		end="}"	contains=@shFunctionList	       skipwhite skipnl		nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionTwo	matchgroup=shFunction start="\<[^d][^o]\&\h\w*\s*\%(()\)\=\_s*{"	end="}"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl	nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionThree	matchgroup=shFunction start="^\s*\h\w*\s*()\_s*("		end=")"	contains=@shFunctionList	       skipwhite skipnl		nextgroup=shFunctionStart,shQuickComment
- ShFoldFunctions syn region shFunctionFour	matchgroup=shFunction start="\<[^d][^o]\&\h\w*\s*\%(()\)\=\_s*("	end=")"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl	nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionOne	matchgroup=shFunction start="^\s*\h\w*\s*()\_s*{"			end="}"	contains=@shFunctionList		 skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionTwo	matchgroup=shFunction start="\%(do\)\@!\&\<\h\w*\>\s*\%(()\)\=\_s*{"		end="}"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionThree	matchgroup=shFunction start="^\s*\h\w*\s*()\_s*("			end=")"	contains=@shFunctionList		 skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
+ ShFoldFunctions syn region shFunctionFour	matchgroup=shFunction start="\%(do\)\@!\&\<\h\w*\>\s*\%(()\)\=\_s*("		end=")"	contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
 endif
 
 " Parameter Dereferencing: {{{1
 " ========================
 if !exists("g:sh_no_error")
- syn match  shDerefWordError	"[^}$[]"	contained
+ syn match  shDerefWordError	"[^}$[~]"	contained
 endif
 syn match  shDerefSimple	"\$\%(\k\+\|\d\)"
 syn region shDeref	matchgroup=PreProc start="\${" end="}"	contains=@shDerefList,shDerefVarArray
@@ -498,7 +512,7 @@
  " 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 shDerefPPSright	contained	start='.'	skip=@\%(\\\\\)\+@		end='\ze}'	contains=@shCommandSubList
+ syn region shDerefPPSright	contained	start='.'	skip=@\%(\\\\\)\+@		end='\ze}'	contains=@shPPSRightList
 
  " bash : ${parameter/#substring/replacement}
  syn match  shDerefPSR	contained	'/#'	nextgroup=shDerefPSRleft
@@ -567,6 +581,7 @@
 " Default Highlighting: {{{1
 " =====================
 hi def link shArithRegion	shShellVariables
+hi def link shAstQuote	shDoubleQuote
 hi def link shAtExpr	shSetList
 hi def link shBeginHere	shRedir
 hi def link shCaseBar	shConditional
@@ -597,7 +612,6 @@
 hi def link shEscape	shCommandSub
 hi def link shExDoubleQuote	shDoubleQuote
 hi def link shExSingleQuote	shSingleQuote
-hi def link shFunction	Function
 hi def link shHereDoc	shString
 hi def link shHerePayload	shHereDoc
 hi def link shLoop	shStatement
@@ -628,21 +642,17 @@
   hi def link bashAdminStatement	shStatement
   hi def link bashSpecialVariables	shShellVariables
   hi def link bashStatement		shStatement
-  hi def link shFunctionParen		Delimiter
-  hi def link shFunctionDelim		Delimiter
   hi def link shCharClass		shSpecial
 endif
 if exists("b:is_kornshell")
   hi def link kshSpecialVariables	shShellVariables
   hi def link kshStatement		shStatement
-  hi def link shFunctionParen		Delimiter
 endif
 
 if !exists("g:sh_no_error")
  hi def link shCaseError		Error
  hi def link shCondError		Error
  hi def link shCurlyError		Error
- hi def link shDerefError		Error
  hi def link shDerefOpError		Error
  hi def link shDerefWordError		Error
  hi def link shDoError		Error