diff -urN cdf31-dist.orig/src/definitions/definitions.B cdf31-dist/src/definitions/definitions.B
--- cdf31-dist.orig/src/definitions/definitions.B	Wed Nov 16 20:01:05 2005
+++ cdf31-dist/src/definitions/definitions.B	Fri Mar 24 19:10:17 2006
@@ -40,3 +40,14 @@
 export CDF_HELP; CDF_HELP=$CDF_BASE/lib/cdf/help
 
 # export IDL_STARTUP; IDL_STARTUP=$CDF_BIN/idlstart.pro
+
+alias cdfedit=$CDF_BIN/cdfedit
+alias cdfexport=$CDF_BIN/cdfexport
+alias cdfconvert=$CDF_BIN/cdfconvert
+alias cdfinquire=$CDF_BIN/cdfinquire
+alias cdfstats=$CDF_BIN/cdfstats
+alias cdfdump=$CDF_BIN/cdfdump
+alias cdfcompare=$CDF_BIN/cdfcompare
+alias skeletontable=$CDF_BIN/skeletontable
+alias skeletoncdf=$CDF_BIN/skeletoncdf
+alias cdfdir=$CDF_BIN/cdfdir
diff -urN cdf31-dist.orig/src/definitions/definitions.B.old cdf31-dist/src/definitions/definitions.B.old
--- cdf31-dist.orig/src/definitions/definitions.B.old	Thu Jan  1 01:00:00 1970
+++ cdf31-dist/src/definitions/definitions.B.old	Fri Mar 24 19:10:12 2006
@@ -0,0 +1,42 @@
+#------------------------------------------------------------------------------
+#
+#  NSSDC/CDF					    Definitions for using CDF.
+#						    Bourne shell.
+#
+#  Version 1.2, 19-Mar-96, Hughes STX.
+#
+#  Modification History:
+#
+#   V1.0  14-Jun-95, J Love	Original version.
+#   V1.1  18-Jul-95, J Love	Added CDFexport.
+#   V1.2  19-Mar-96, J Love	CDF V2.6.
+#
+#-----------------------------------------------------------------------------
+# Before using this script file, change the definition of CDF_BASE for where
+# CDF was installed on your machine (ie. the directory containing the `bin',
+# `lib', and `include' directories).  All CDF users can then use the command
+#
+#	$ . <path>/bin/definitions.B
+#
+# to setup the necessary enviroment variables (where <path> is the full
+# directory path leading to where CDF was installed).  
+#
+# Aliases are not available with the Bourne shell.  The toolkit programs must
+# be invoked by specifying the actual name of the executable.  The executables
+# are found in ${CDF_BIN} (after the installation step of building the CDF
+# distribution).  For example, to execute CDFedit the following would be used:
+#
+#       $ ${CDF_BIN}/cdfedit <qualifiers/options> <parameter(s)>
+#
+# Note that `{CDF_BIN}' could also also be added to a user's path allowing
+# the toolkit programs to be executed simply by specifying their names.
+#-----------------------------------------------------------------------------
+
+export CDF_BASE; CDF_BASE=<cdf_install_dir>
+
+export CDF_INC; CDF_INC=$CDF_BASE/include
+export CDF_LIB; CDF_LIB=$CDF_BASE/lib
+export CDF_BIN; CDF_BIN=$CDF_BASE/bin
+export CDF_HELP; CDF_HELP=$CDF_BASE/lib/cdf/help
+
+# export IDL_STARTUP; IDL_STARTUP=$CDF_BIN/idlstart.pro
diff -urN cdf31-dist.orig/src/help/cdfcvt.olh cdf31-dist/src/help/cdfcvt.olh
--- cdf31-dist.orig/src/help/cdfcvt.olh	Wed Nov 23 16:13:01 2005
+++ cdf31-dist/src/help/cdfcvt.olh	Fri Mar 24 23:36:58 2006
@@ -250,7 +250,7 @@
                              [/COMPRESSION=(<types>)] [/[NO]DELETE]
                              [/SPARSENESS=(<types>)] [/BACKWARD]
 #endos
-#ifos unix     
+#ifos unix
 Usage:       % cdfconvert [-skeleton <skt-cdf-path>] [-[no]log]
                           [-[no]percent] [-report "<types>"] [-[no]page]
                           [-cache "<sizes>"] [-[no]statistics]
@@ -561,15 +561,16 @@
                /BACKWARD
 #else
                -backward
-#endos         
+#endos
                   By default, the converted file will be of the same version
                   as the library it runs on, unless the environment variable
-                  CDF_FILEBACKWARD is set to true. In that case, a backward 
-                  V2.7 version file is created. This option serves the
-                  same propose to create a backward version file if that
-                  environment variable is not set. 
-                  Make sure that the source file is not over 2G
-                  file size limit, either compressed or uncompressed.
+                  CDF_FILEBACKWARD (or CDF$FILEBACKWARD on OpenVMS) is set to
+                  true. In that case, a backward V2.7 version file is
+                  created.  This option serves the same propose to create a
+                  backward version file if that environment variable is not
+                  set. If this option is on, make sure that the source file
+                  is not over 2G file size limit, either compressed or
+                  uncompressed.
 
 #ifos vms
 Example(s):    $ CDFCONVERT CDF$SMPL:TPLATE0 TEMPLATE0X/ENCODING=IBMPC