diff --git a/wmake/scripts/cmakeFunctions b/wmake/scripts/cmakeFunctions
index 1b560cd6ad..d1793eec0c 100644
--- a/wmake/scripts/cmakeFunctions
+++ b/wmake/scripts/cmakeFunctions
@@ -81,7 +81,7 @@ cmakeVersioned()
 
     mkdir -p "$objectsDir" \
     && ( cd "$objectsDir" && call_cmake "$@" "$sourceDir" && \
-         make "-j${WM_NCOMPPROCS:-1}" ) \
+         make ) \
     && storeDependency "$sentinel" "$depend" $@
 }
 
@@ -108,7 +108,7 @@ cmakeVersionedInstall()
 
     mkdir -p "$objectsDir" \
     && ( cd "$objectsDir" && call_cmake "$@" "$sourceDir" && \
-         make "-j${WM_NCOMPPROCS:-1}" install ) \
+         make install ) \
     && storeDependency "$sentinel" "$depend" $@
 }
 
diff --git a/wmake/scripts/wcleanObjects b/wmake/scripts/wcleanObjects
index b04efe7e3d..d417b78ec7 100755
--- a/wmake/scripts/wcleanObjects
+++ b/wmake/scripts/wcleanObjects
@@ -61,7 +61,7 @@ options:
   -curr | -current      Use \$WM_OPTIONS ($WM_OPTIONS)
   -comp | -compiler     Use \$WM_ARCH\$WM_COMPILER*  ($WM_ARCH$WM_COMPILER)
   -compiler=NAME        Use \$WM_ARCH<NAME>*  ($WM_ARCH<NAME>*)
-  -h | -help            Print the usage
+  -help                 Print the usage
 
 Deletes specified $targetDir object file directories from project top-level:
 Project:   $WM_PROJECT_DIR
diff --git a/wmake/scripts/wmake.wmake-args b/wmake/scripts/wmake.wmake-args
new file mode 100644
index 0000000000..87d4495026
--- /dev/null
+++ b/wmake/scripts/wmake.wmake-args
@@ -0,0 +1,90 @@
+#----------------------------------*-sh-*--------------------------------------
+# =========                 |
+# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+#  \\    /   O peration     |
+#   \\  /    A nd           | www.openfoam.com
+#    \\/     M anipulation  |
+#------------------------------------------------------------------------------
+#     Copyright (C) 2020 OpenCFD Ltd.
+#------------------------------------------------------------------------------
+# License
+#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
+#
+# File
+#     wmake/scripts/wmake.wmake-args
+#
+# Description
+#     Reduced argument parser (eg, for scripts using wmake)
+#     that handles some common parameters
+#
+# Usage
+#     # Parse the arguments by sourcing this script
+#     . ${WM_PROJECT_DIR:?}/wmake/scripts/wmake.wmake-args
+#
+# Options
+#     -s | -silent | -quiet
+#     Exports WM_QUIET=true
+#
+#     -j | -jN | -j N
+#     Compile using all or specified N cores/hyperthreads
+#
+#------------------------------------------------------------------------------
+
+# NB: nArgs to track the current processing position to avoid wraparound
+# when checking for optional parameters (eg, the -j processing)
+
+nArgs="$#"
+for arg in "$@"
+do
+    shift; nArgs="$((nArgs - 1))"               # Drop argument
+
+    case "$arg" in
+
+    # Silent operation
+    -s | -silent | -quiet)
+        export WM_QUIET=true
+        continue    # Handled argument
+        ;;
+
+    # Parallel compilation (all or specified number of cores)
+    -j)
+        export WM_NCOMPPROCS=0
+        if [ "$nArgs" -gt 0 ]
+        then
+            case "$1" in
+            [0-9]*)
+                if WM_NCOMPPROCS="$(expr 0 + "$1" 2>/dev/null)"
+                then
+                    shift; nArgs="$((nArgs - 1))"   # Drop argument
+                fi
+                ;;
+            esac
+        fi
+        if [ "${WM_NCOMPPROCS:=0}" -le 0 ]
+        then
+            WM_NCOMPPROCS=$(getconf _NPROCESSORS_ONLN 2>/dev/null) || \
+                WM_NCOMPPROCS=1
+        fi
+
+        echo "Compiling enabled on $WM_NCOMPPROCS cores" 1>&2
+        continue    # Handled argument
+        ;;
+
+    # Parallel compilation (specified number of cores)
+    -j[0-9]*)
+        export WM_NCOMPPROCS="${arg#-j}"
+        if [ "${WM_NCOMPPROCS:=0}" -le 0 ]
+        then
+            WM_NCOMPPROCS=$(getconf _NPROCESSORS_ONLN 2>/dev/null) || \
+                WM_NCOMPPROCS=1
+        fi
+
+        echo "Compiling enabled on $WM_NCOMPPROCS cores" 1>&2
+        continue    # Handled argument
+        ;;
+    esac
+
+    set -- "$@" "$arg"     # Reinsert unhandled argument
+done
+
+#------------------------------------------------------------------------------
diff --git a/wmake/wclean b/wmake/wclean
index 78d16533b1..53712bfadd 100755
--- a/wmake/wclean
+++ b/wmake/wclean
@@ -52,7 +52,7 @@ Usage: $Script [OPTION] [dir]
 options:
   -a | -all         All subdirectories, uses Allwclean, Allclean if they exist
   -s | -silent      Silent mode (ignored - for compatibility with wmake)
-  -h | -help        Display short help and exit
+  -help             Display short help and exit
   -help-full        Display full help and exit
 
 subcommands (wclean subcommand -help for more information):
@@ -136,7 +136,7 @@ do
     -a | -all | all)
         targetType=all
         ;;
-    -s | -silent)    # Ignored - for compatibility with wmake
+    -s | -silent | -quiet)
         export WM_QUIET=true
         ;;
     -*)
diff --git a/wmake/wmake b/wmake/wmake
index 83425b95e7..b411cf8ab2 100755
--- a/wmake/wmake
+++ b/wmake/wmake
@@ -100,7 +100,7 @@ fi
 cat<<TAIL_OPTIONS
   -pwd              Print root directory containing a Make/ directory
   -version | --version  Print version (same as -show-api)
-  -h | -help        Display short help and exit
+  -help             Display short help and exit
   -help-full        Display full help and exit
 
 subcommands (wmake subcommand -help for more information):
@@ -219,7 +219,7 @@ do
             exit $?
             ;;
 
-        -s | -silent)
+        -s | -silent | -quiet)
             optQuiet=true
             export WM_QUIET=true
             ;;
diff --git a/wmake/wmakeLnInclude b/wmake/wmakeLnInclude
index 7243c7ebdd..f64a8dffdb 100755
--- a/wmake/wmakeLnInclude
+++ b/wmake/wmakeLnInclude
@@ -40,7 +40,7 @@ options:
   -u | -update      Update existing lnInclude directories
   -s | -silent      Silent mode (do not echo command)
   -pwd              Locate root directory containing Make/ directory
-  -h | -help        Print the usage
+  -help             Print the usage
 
 Link source files in specified dir(s) into their respective
 lnInclude directories. With '-update', items are relinked with 'ln -sf'
@@ -71,7 +71,7 @@ die()
 # Option for 'ln'
 optLink="-s"
 
-unset optForce optQuiet optUpdate optPwd
+unset optForce optUpdate optPwd
 
 while [ "$#" -gt 0 ]
 do
@@ -87,8 +87,8 @@ do
             optUpdate=true
             optLink="-sf"
             ;;
-        -s | -silent)
-            optQuiet=true
+        -s | -silent | -quiet)
+            export WM_QUIET=true
             ;;
         -pwd)
             optPwd=true
diff --git a/wmake/wmakeLnIncludeAll b/wmake/wmakeLnIncludeAll
index e69f1a66a8..31e5480b4d 100755
--- a/wmake/wmakeLnIncludeAll
+++ b/wmake/wmakeLnIncludeAll
@@ -36,23 +36,38 @@
 #     and execute 'wmakeLnInclude' for each one
 #
 #------------------------------------------------------------------------------
-Script=${0##*/}
+Script="${0##*/}"                   # Need 'Script' for wmakeFunctions messages
 
-usage() {
-    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
+printHelp() {
     cat<<USAGE
 
-Usage: $Script [OPTION] [dir1 .. dirN]
+Usage: ${0##*/} [OPTION] [dir1 .. dirN]
 
 options:
-  -j                Compile using all local cores/hyperthreads
-  -jN or -j N       Compile using N cores/hyperthreads
-  -h | -help        Print the usage
+  -f | -force       Force remove of existing lnInclude before recreating
+  -u | -update      Update existing lnInclude directories
+  -j                Use all local cores/hyperthreads
+  -jN | -j N        Use N cores/hyperthreads
+  -help             Display short help and exit
 
 Find directories with a 'Make/files' containing a 'LIB =' directive
-and execute 'wmakeLnInclude -update' for each one
+and execute 'wmakeLnInclude' for each.
 
 USAGE
+    exit 0 # clean exit
+}
+
+
+# Report error and exit
+die()
+{
+    exec 1>&2
+    echo
+    echo "Error encountered:"
+    while [ "$#" -ge 1 ]; do echo "    $1"; shift; done
+    echo
+    echo "See '${0##*/} -help' for usage"
+    echo
     exit 1
 }
 
@@ -61,35 +76,53 @@ USAGE
 # Parse arguments and options
 #------------------------------------------------------------------------------
 
-findName=lnInclude
+# Parallel operation requested
 nCores=0
 
-# Default 'wmakeLnInclude' option
-unset wmLnOpt
+unset optForce optUpdate
 
 while [ "$#" -gt 0 ]
 do
     case "$1" in
         -h | -help*)
-            usage
+            printHelp
+            ;;
+        -f | -force)
+            optForce=true
             ;;
         -u | -update)
-            wmLnOpt="-update"
+            optUpdate=true
+            ;;
+        -s | -silent | -quiet)
+            export WM_QUIET=true
             ;;
         # Parallel execution on WM_NCOMPPROCS cores
         -j)
-            nCores=${WM_NCOMPPROCS:-0}
-            test $# -ge 2 && expr $2 + 1 > /dev/null 2>&1 \
-                && shift && nCores=$1
+            nJobs=0
+            case "$2" in
+            [0-9]*)
+                if nJobs="$(expr 0 + "$2" 2>/dev/null)"
+                then
+                    shift
+                fi
+                ;;
+            esac
 
-            [ "$nCores" = 0 ] && nCores=1
+            if [ "${nJobs:=0}" -gt 0 ]
+            then
+                nCores="$nJobs"
+            else
+                nCores="${WM_NCOMPPROCS:-1}"
+                [ "$nCores" -gt 0 ] || nCores=1
+            fi
             ;;
+
         # Parallel compilation on specified number of cores
         -j[1-9]*)
-            nCores=${1#-j}
+            nCores="${1#-j}"
             ;;
         -*)
-            usage "unknown option: '$1'"
+            die "unknown option: '$1'"
             ;;
         *)
             break
@@ -98,6 +131,7 @@ do
     shift
 done
 
+
 # Default search is from CWD, with special handling of the top-level
 # project directory: {applications,src} directories
 if [ "$#" -eq 0 ]
@@ -112,14 +146,14 @@ fi
 
 if [ "$nCores" -gt 0 ]
 then
-    echo "$Script: starting wmakeLnInclude processes on $nCores cores"
+    echo "${0##*/}: starting wmakeLnInclude processes on $nCores cores"
 else
-    echo "$Script: running wmakeLnInclude"
+    echo "${0##*/}: running wmakeLnInclude"
 fi
 
 for checkDir
 do
-    if [ -d $checkDir ]
+    if [ -d "$checkDir" ]
     then
         echo "    searching $checkDir for 'Make' directories"
     else
@@ -127,7 +161,7 @@ do
         continue
     fi
 
-    find $checkDir -depth -name Make -type d -print | while read MakeDir
+    find "$checkDir" -depth -name Make -type d -print | while read MakeDir
     do
         topDir=${MakeDir%/Make}    # trim /Make from the end
         if [ -d "$topDir" ]
@@ -145,9 +179,9 @@ do
                         wait -n
                         joblist=($(jobs -p))
                     done
-                    wmakeLnInclude $wmLnOpt $topDir &
+                    wmakeLnInclude ${optForce:+-force} ${optUpdate:+-update} $topDir &
                 else
-                    wmakeLnInclude $wmLnOpt $topDir
+                    wmakeLnInclude ${optForce:+-force} ${optUpdate:+-update} $topDir
                 fi
             elif [ -d "$topDir/lnInclude" ]
             then
@@ -160,7 +194,7 @@ done
 
 if [ "$nCores" -gt 0 ]
 then
-    # Wait for all of the wmakeLnInclude jobs to finish
+    # Wait for wmakeLnInclude jobs to finish
     wait
 
     # Synchronize the file system to ensure that all of the links exist