diff --git a/files/concatfragments.sh b/files/concatfragments.sh
deleted file mode 100755
index 7e6b0f5c5..000000000
--- a/files/concatfragments.sh
+++ /dev/null
@@ -1,140 +0,0 @@
-#!/bin/sh
-
-# Script to concat files to a config file.
-#
-# Given a directory like this:
-# /path/to/conf.d
-# |-- fragments
-# |   |-- 00_named.conf
-# |   |-- 10_domain.net
-# |   `-- zz_footer
-#
-# The script supports a test option that will build the concat file to a temp location and 
-# use /usr/bin/cmp to verify if it should be run or not.  This would result in the concat happening
-# twice on each run but gives you the option to have an unless option in your execs to inhibit rebuilds.
-# 
-# Without the test option and the unless combo your services that depend on the final file would end up 
-# restarting on each run, or in other manifest models some changes might get missed.
-#
-# OPTIONS:
-#  -o	The file to create from the sources
-#  -d	The directory where the fragments are kept
-#  -t	Test to find out if a build is needed, basically concats the files to a temp
-#       location and compare with what's in the final location, return codes are designed
-#       for use with unless on an exec resource
-#  -w   Add a shell style comment at the top of the created file to warn users that it 
-#       is generated by puppet
-#  -f   Enables the creation of empty output files when no fragments are found
-#  -n	Sort the output numerically rather than the default alpha sort
-#
-# the command: 
-#
-#   concatfragments.sh -o /path/to/conffile.cfg -d /path/to/conf.d
-#
-# creates /path/to/conf.d/fragments.concat and copies the resulting 
-# file to /path/to/conffile.cfg.  The files will be sorted alphabetically
-# pass the -n switch to sort numerically.
-# 
-# The script does error checking on the various dirs and files to make
-# sure things don't fail.
-
-OUTFILE=""
-WORKDIR=""
-TEST=""
-FORCE=""
-WARN=""
-SORTARG=""
-ENSURE_NEWLINE=""
-
-PATH=/sbin:/usr/sbin:/bin:/usr/bin
-
-## Well, if there's ever a bad way to do things, Nexenta has it.
-## http://nexenta.org/projects/site/wiki/Personalities
-unset SUN_PERSONALITY
-
-while getopts "o:s:d:tnw:fl" options; do
-	case $options in
-		o ) OUTFILE=$OPTARG;;
-		d ) WORKDIR=$OPTARG;;
-		n ) SORTARG="-n";;
-		w ) WARNMSG="$OPTARG";;
-		f ) FORCE="true";;
-		t ) TEST="true";;
-		l ) ENSURE_NEWLINE="true";;
-		* ) echo "Specify output file with -o and fragments directory with -d"
-		    exit 1;;
-	esac
-done
-
-# do we have -o?
-if [ "x${OUTFILE}" = "x" ]; then
-	echo "Please specify an output file with -o"
-	exit 1
-fi
-
-# do we have -d?
-if [ "x${WORKDIR}" = "x" ]; then
-	echo "Please fragments directory with -d"
-	exit 1
-fi
-
-# can we write to -o?
-if [ -f "${OUTFILE}" ]; then
-	if [ ! -w "${OUTFILE}" ]; then
-		echo "Cannot write to ${OUTFILE}"
-		exit 1
-	fi
-else
-	if [ ! -w `dirname "${OUTFILE}"` ]; then
-		echo "Cannot write to `dirname \"${OUTFILE}\"` to create ${OUTFILE}"
-		exit 1
-	fi
-fi
-
-# do we have a fragments subdir inside the work dir?
-if [ ! -d "${WORKDIR}/fragments" ]  && [ ! -x "${WORKDIR}/fragments" ]; then
-	echo "Cannot access the fragments directory"
-	exit 1
-fi
-
-# are there actually any fragments?
-if [ ! "$(ls -A """${WORKDIR}/fragments""")" ]; then
-	if [ "x${FORCE}" = "x" ]; then
-		echo "The fragments directory is empty, cowardly refusing to make empty config files"
-		exit 1
-	fi
-fi
-
-cd "${WORKDIR}"
-
-if [ "x${WARNMSG}" = "x" ]; then
-	: > "fragments.concat"
-else
-	printf '%s\n' "$WARNMSG" > "fragments.concat"
-fi
-
-# find all the files in the fragments directory, sort them numerically and concat to fragments.concat in the working dir
-IFS_BACKUP=$IFS
-IFS='
-'
-for fragfile in `find fragments/ -type f -follow -print0 | xargs -0 -n1 basename | LC_ALL=C sort ${SORTARG}`
-do
-    cat "fragments/$fragfile" >> "fragments.concat"
-    # Handle newlines.
-    if [ "x${ENSURE_NEWLINE}" != "x" ]; then
-      echo >> "fragments.concat"
-    fi
-done
-IFS=$IFS_BACKUP
-
-if [ "x${TEST}" = "x" ]; then
-	# This is a real run, copy the file to outfile
-	cp fragments.concat "${OUTFILE}"
-	RETVAL=$?
-else
-	# Just compare the result to outfile to help the exec decide
-	cmp "${OUTFILE}" fragments.concat
-	RETVAL=$?
-fi
-
-exit $RETVAL
diff --git a/manifests/init.pp b/manifests/init.pp
index 1727bec2c..78c408149 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -34,7 +34,7 @@
 #
 # === Actions:
 # * Creates fragment directories if it didn't exist already
-# * Executes the concatfragments.sh script to build the final file, this
+# * Executes the concatfragments.rb script to build the final file, this
 #   script will create directory/fragments.concat.   Execution happens only
 #   when:
 #   * The directory changes
@@ -210,7 +210,7 @@
     }
 
     # if puppet is running as root, this exec should also run as root to allow
-    # the concatfragments.sh script to potentially be installed in path that
+    # the concatfragments.rb script to potentially be installed in path that
     # may not be accessible by a target non-root owner.
     exec { "concat_${name}":
       alias     => "concat_${fragdir}",
diff --git a/manifests/setup.pp b/manifests/setup.pp
index f04f2d7f5..a2da1ed38 100644
--- a/manifests/setup.pp
+++ b/manifests/setup.pp
@@ -25,15 +25,7 @@
   $fragment_owner = $::osfamily ? { 'windows' => undef, default => $::id }
   $fragment_mode  = $::osfamily ? { 'windows' => undef, default => '0640' }
 
-  # PR #174 introduced changes to the concatfragments.sh script that are
-  # incompatible with Solaris 10 but reportedly OK on Solaris 11.  As a work
-  # around we are enable the .rb concat script on all Solaris versions.  If
-  # this goes smoothly, we should move towards completely eliminating the .sh
-  # version.
-  $script_name = $::osfamily? {
-    /(?i:(Windows|Solaris|AIX))/ => 'concatfragments.rb',
-    default                      => 'concatfragments.sh'
-  }
+  $script_name = 'concatfragments.rb'
 
   $script_path = "${concatdir}/bin/${script_name}"
 
diff --git a/spec/acceptance/concat_spec.rb b/spec/acceptance/concat_spec.rb
index 7a6d95cfd..c5c972774 100644
--- a/spec/acceptance/concat_spec.rb
+++ b/spec/acceptance/concat_spec.rb
@@ -4,12 +4,12 @@
   when 'AIX'
     username = 'root'
     groupname = 'system'
-    scriptname = 'concatfragments.sh'
+    scriptname = 'concatfragments.rb'
     vardir = default['puppetvardir']
   when 'Darwin'
     username = 'root'
     groupname = 'wheel'
-    scriptname = 'concatfragments.sh'
+    scriptname = 'concatfragments.rb'
     vardir = default['puppetvardir']
   when 'windows'
     username = 'Administrator'
@@ -25,7 +25,7 @@
   else
     username = 'root'
     groupname = 'root'
-    scriptname = 'concatfragments.sh'
+    scriptname = 'concatfragments.rb'
     vardir = default['puppetvardir']
 end
 
diff --git a/spec/unit/classes/concat_setup_spec.rb b/spec/unit/classes/concat_setup_spec.rb
index 2aac7634d..e97a29caa 100644
--- a/spec/unit/classes/concat_setup_spec.rb
+++ b/spec/unit/classes/concat_setup_spec.rb
@@ -16,9 +16,9 @@
     end
 
     it do
-      should contain_file("#{concatdir}/bin/concatfragments.sh").with({
+      should contain_file("#{concatdir}/bin/concatfragments.rb").with({
         :mode   => '0755',
-        :source => 'puppet:///modules/concat/concatfragments.sh',
+        :source => 'puppet:///modules/concat/concatfragments.rb',
         :backup => false,
       })
     end
diff --git a/spec/unit/defines/concat_spec.rb b/spec/unit/defines/concat_spec.rb
index de12ab901..a748f9607 100644
--- a/spec/unit/defines/concat_spec.rb
+++ b/spec/unit/defines/concat_spec.rb
@@ -91,7 +91,7 @@
         }))
       end
 
-      cmd = "#{concatdir}/bin/concatfragments.sh " +
+      cmd = "#{concatdir}/bin/concatfragments.rb " +
             "-o \"#{concatdir}/#{safe_name}/fragments.concat.out\" " +
             "-d \"#{concatdir}/#{safe_name}\""