Update develop branch for generic linux, MacOS capability (#539)

## DESCRIPTION OF CHANGES: 
This change will add the capability to run regional_workflow (as part of the SRW app) on MacOS and generic LINUX platforms. Most of these changes are identical to those in #402 (hash e6b8c74) but some additional modifications needed to be made due to intervening changes in the develop branch.

## TESTS CONDUCTED: 
Ran Graduate Student Test on new platforms:
 - my personal Mac machine (MacOS Catalina 10.15.7) MacOS with gnu 9.4.0 compilers. 
 - Cheyenne compute node as a faux "stand-alone" machine, intel 19.1.1 compilers

Ran suite of end-to-end tests on Cheyenne (intel/19.1.1) and Hera (intel/18.0.5.274). All passed as expected.

Tests also passed on WCOSS, MacOS Mojave, RedHat Linux.

## ISSUE: 
Will resolve #369

jobs/JREGIONAL_GET_EXTRN_MDL_FILES

@@ -57,7 +57,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_GET_OBS_CCPA

@@ -39,7 +39,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_GET_OBS_MRMS

@@ -35,7 +35,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_GET_OBS_NDAS

@@ -35,7 +35,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_MAKE_GRID

@@ -125,7 +125,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_MAKE_ICS

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_MAKE_LBCS

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_MAKE_OROG

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_MAKE_SFC_CLIMO

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_FCST

@@ -37,7 +37,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_POST

@@ -36,7 +36,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #
@@ -113,7 +113,7 @@ cd_vrfy "${tmp_dir}"
 #
 #-----------------------------------------------------------------------
 #
-fhr=$( printf "%s" "${fhr}" | sed -n -r -e "s/^([0-9]+)$/\1/p" )
+fhr=$( printf "%s" "${fhr}" | $SED -n -r -e "s/^([0-9]+)$/\1/p" )
 if [ -z "$fhr" ]; then
   print_err_msg_exit "\
 The forecast hour (fhr) must be a non-empty string consisting of only 

jobs/JREGIONAL_RUN_VX_ENSGRID

@@ -36,7 +36,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_ENSGRID_MEAN

@@ -36,7 +36,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_ENSGRID_PROB

@@ -36,7 +36,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_ENSPOINT

@@ -34,7 +34,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_ENSPOINT_MEAN

@@ -34,7 +34,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_ENSPOINT_PROB

@@ -34,7 +34,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_GRIDSTAT

@@ -36,7 +36,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

jobs/JREGIONAL_RUN_VX_POINTSTAT

@@ -34,7 +34,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #

scripts/exregional_get_ccpa_files.sh

@@ -47,9 +47,9 @@ while [[ ${current_fcst} -le ${fcst_length} ]]; do
   mm=`echo ${init} | cut -c5-6`    # month (MM) of initialization time
   dd=`echo ${init} | cut -c7-8`    # day (DD) of initialization time
   hh=`echo ${init} | cut -c9-10`   # hour (HH) of initialization time
-  init_ut=`date -ud ''${yyyy}-${mm}-${dd}' UTC '${hh}':00:00' +%s` # convert initialization time to universal time
+  init_ut=`$DATE_UTIL -ud ''${yyyy}-${mm}-${dd}' UTC '${hh}':00:00' +%s` # convert initialization time to universal time
   vdate_ut=`expr ${init_ut} + ${fcst_sec}` # calculate current forecast time in universal time
-  vdate=`date -ud '1970-01-01 UTC '${vdate_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd=`echo ${vdate} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy=`echo ${vdate} | cut -c1-4`  # year (YYYY) of valid time
   vmm=`echo ${vdate} | cut -c5-6`    # month (MM) of valid time
@@ -60,7 +60,7 @@ while [[ ${current_fcst} -le ${fcst_length} ]]; do
 
   # Calculate valid date - 1 day
   vdate_ut_m1=`expr ${vdate_ut} - 86400` 
-  vdate_m1=`date -ud '1970-01-01 UTC '${vdate_ut_m1}' seconds' +%Y%m%d%H` 
+  vdate_m1=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m1}' seconds' +%Y%m%d%H` 
   vyyyymmdd_m1=`echo ${vdate_m1} | cut -c1-8` 
   vyyyy_m1=`echo ${vdate_m1} | cut -c1-4`
   vmm_m1=`echo ${vdate_m1} | cut -c5-6` 
@@ -69,7 +69,7 @@ while [[ ${current_fcst} -le ${fcst_length} ]]; do
 
   # Calculate valid date + 1 day
   vdate_ut_p1=`expr ${vdate_ut} + 86400`
-  vdate_p1=`date -ud '1970-01-01 UTC '${vdate_ut_p1}' seconds' +%Y%m%d%H`
+  vdate_p1=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_p1}' seconds' +%Y%m%d%H`
   vyyyymmdd_p1=`echo ${vdate_p1} | cut -c1-8`
   vyyyy_p1=`echo ${vdate_p1} | cut -c1-4`
   vmm_p1=`echo ${vdate_p1} | cut -c5-6` 

scripts/exregional_get_extrn_mdl_files.sh

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #
@@ -524,7 +524,7 @@ not happen."
 # to the current directory.  Then move the files.
 #
         rel_dir=$( printf "%s" "${extrn_mdl_arcvrel_dir}" | \
-                   sed -r 's%^(\/|\.\/)([^/]*)(.*)%\2\3%' ) 
+                   $SED -r 's%^(\/|\.\/)([^/]*)(.*)%\2\3%' ) 
         mv_vrfy ${rel_dir}/* .
 #
 # Get the first subdirectory in rel_dir, i.e. the subdirectory before the 
@@ -533,7 +533,7 @@ not happen."
 # it.
 #
         subdir_to_remove=$( printf "%s" "${rel_dir}" | \
-                            sed -r 's%^([^/]*)(.*)%\1%' ) 
+                            $SED -r 's%^([^/]*)(.*)%\1%' ) 
         rm_vrfy -rf ./${subdir_to_remove}
 #
 # If extrn_mdl_arcvrel_dir does not start with a "/" (and it is not 

scripts/exregional_get_mrms_files.sh

@@ -38,7 +38,7 @@ s_yyyy=`echo ${start_valid} | cut -c1-4`  # year (YYYY) of start time
 s_mm=`echo ${start_valid} | cut -c5-6`    # month (MM) of start time
 s_dd=`echo ${start_valid} | cut -c7-8`    # day (DD) of start time
 s_hh=`echo ${start_valid} | cut -c9-10`   # hour (HH) of start time
-start_valid_ut=`date -ud ''${s_yyyy}-${s_mm}-${s_dd}' UTC '${s_hh}':00:00' +%s` # convert start time to universal time
+start_valid_ut=`$DATE_UTIL -ud ''${s_yyyy}-${s_mm}-${s_dd}' UTC '${s_hh}':00:00' +%s` # convert start time to universal time
 
 end_fcst_sec=`expr ${fcst_length} \* 3600` # convert last forecast lead hour to seconds
 end_valid_ut=`expr ${start_valid_ut} + ${end_fcst_sec}` # calculate current forecast time in universal time
@@ -48,7 +48,7 @@ current_fcst=0
 fcst_sec=`expr ${current_fcst} \* 3600` # convert forecast lead hour to seconds
 
 while [[ ${cur_ut} -le ${end_valid_ut} ]]; do
-  cur_time=`date -ud '1970-01-01 UTC '${cur_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  cur_time=`$DATE_UTIL -ud '1970-01-01 UTC '${cur_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
   echo "cur_time=${cur_time}"
 
   # Calculate valid date info
@@ -57,7 +57,7 @@ while [[ ${cur_ut} -le ${end_valid_ut} ]]; do
   vdd=`echo ${cur_time} | cut -c7-8`    # day (DD) of time
   vhh=`echo ${cur_time} | cut -c9-10`   # hour (HH) of time
   vyyyymmdd=`echo ${cur_time} | cut -c1-8`    # YYYYMMDD of time
-  vinit_ut=`date -ud ''${vyyyy}-${vmm}-${vdd}' UTC '${vhh}':00:00' +%s` # convert time to universal time
+  vinit_ut=`$DATE_UTIL -ud ''${vyyyy}-${vmm}-${vdd}' UTC '${vhh}':00:00' +%s` # convert time to universal time
 
   # Create necessary raw and proc directories
   if [[ ! -d "$mrms_raw/${vyyyymmdd}" ]]; then

scripts/exregional_get_ndas_files.sh

@@ -40,9 +40,9 @@ while [[ ${current_fcst} -le ${fcst_length} ]]; do
   mm=`echo ${init} | cut -c5-6`    # month (MM) of initialization time
   dd=`echo ${init} | cut -c7-8`    # day (DD) of initialization time
   hh=`echo ${init} | cut -c9-10`   # hour (HH) of initialization time
-  init_ut=`date -ud ''${yyyy}-${mm}-${dd}' UTC '${hh}':00:00' +%s` # convert initialization time to universal time
+  init_ut=`$DATE_UTIL -ud ''${yyyy}-${mm}-${dd}' UTC '${hh}':00:00' +%s` # convert initialization time to universal time
   vdate_ut=`expr ${init_ut} + ${fcst_sec}` # calculate current forecast time in universal time
-  vdate=`date -ud '1970-01-01 UTC '${vdate_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd=`echo ${vdate} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy=`echo ${vdate} | cut -c1-4`  # year (YYYY) of valid time
   vmm=`echo ${vdate} | cut -c5-6`    # month (MM) of valid time
@@ -53,39 +53,39 @@ echo "yyyy mm dd hh= $yyyy $mm $dd $hh"
 echo "vyyyy vmm vdd vhh= $vyyyy $vmm $vdd $vhh"
 
   vdate_ut_m1h=`expr ${vdate_ut} - 3600` # calculate current forecast time in universal time
-  vdate_m1h=`date -ud '1970-01-01 UTC '${vdate_ut_m1h}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate_m1h=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m1h}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd_m1h=`echo ${vdate_m1h} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy_m1h=`echo ${vdate_m1h} | cut -c1-4`  # year (YYYY) of valid time
   vmm_m1h=`echo ${vdate_m1h} | cut -c5-6`    # month (MM) of valid time
   vdd_m1h=`echo ${vdate_m1h} | cut -c7-8`    # day (DD) of valid time
   vhh_m1h=`echo ${vdate_m1h} | cut -c9-10`       # forecast hour (HH)
 
   vdate_ut_m2h=`expr ${vdate_ut} - 7200` # calculate current forecast time in universal time
-  vdate_m2h=`date -ud '1970-01-01 UTC '${vdate_ut_m2h}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate_m2h=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m2h}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd_m2h=`echo ${vdate_m2h} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy_m2h=`echo ${vdate_m2h} | cut -c1-4`  # year (YYYY) of valid time
   vmm_m2h=`echo ${vdate_m2h} | cut -c5-6`    # month (MM) of valid time
   vdd_m2h=`echo ${vdate_m2h} | cut -c7-8`    # day (DD) of valid time
   vhh_m2h=`echo ${vdate_m2h} | cut -c9-10`       # forecast hour (HH)
 
   vdate_ut_m3h=`expr ${vdate_ut} - 10800` # calculate current forecast time in universal time
-  vdate_m3h=`date -ud '1970-01-01 UTC '${vdate_ut_m3h}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate_m3h=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m3h}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd_m3h=`echo ${vdate_m3h} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy_m3h=`echo ${vdate_m3h} | cut -c1-4`  # year (YYYY) of valid time
   vmm_m3h=`echo ${vdate_m3h} | cut -c5-6`    # month (MM) of valid time
   vdd_m3h=`echo ${vdate_m3h} | cut -c7-8`    # day (DD) of valid time
   vhh_m3h=`echo ${vdate_m3h} | cut -c9-10`       # forecast hour (HH)
 
   vdate_ut_m4h=`expr ${vdate_ut} - 14400` # calculate current forecast time in universal time
-  vdate_m4h=`date -ud '1970-01-01 UTC '${vdate_ut_m4h}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate_m4h=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m4h}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd_m4h=`echo ${vdate_m4h} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy_m4h=`echo ${vdate_m4h} | cut -c1-4`  # year (YYYY) of valid time
   vmm_m4h=`echo ${vdate_m4h} | cut -c5-6`    # month (MM) of valid time
   vdd_m4h=`echo ${vdate_m4h} | cut -c7-8`    # day (DD) of valid time
   vhh_m4h=`echo ${vdate_m4h} | cut -c9-10`       # forecast hour (HH)
 
   vdate_ut_m5h=`expr ${vdate_ut} - 18000` # calculate current forecast time in universal time
-  vdate_m5h=`date -ud '1970-01-01 UTC '${vdate_ut_m5h}' seconds' +%Y%m%d%H` # convert universal time to standard time
+  vdate_m5h=`$DATE_UTIL -ud '1970-01-01 UTC '${vdate_ut_m5h}' seconds' +%Y%m%d%H` # convert universal time to standard time
   vyyyymmdd_m5h=`echo ${vdate_m5h} | cut -c1-8`  # forecast time (YYYYMMDD)
   vyyyy_m5h=`echo ${vdate_m5h} | cut -c1-4`  # year (YYYY) of valid time
   vmm_m5h=`echo ${vdate_m5h} | cut -c5-6`    # month (MM) of valid time

scripts/exregional_make_grid.sh

@@ -37,7 +37,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #
@@ -135,11 +135,18 @@ case "$MACHINE" in
     ulimit -a
     ;;
 
+  "MACOS")
+    APRUN=time
+    ;;
+
+  "LINUX")
+    APRUN=time
+    ;;
+
   *)
     print_err_msg_exit "\
 Run command has not been specified for this machine:
-  MACHINE = \"$MACHINE\"
-  APRUN = \"$APRUN\""
+  MACHINE = \"$MACHINE\""
     ;;
 
 esac
@@ -422,6 +429,14 @@ uniform cubed-sphere grid equivalent resolution returned with nonzero exit
 code:
   exec_fp = \"${exec_fp}\""
 
+# Make sure 'ncdump' is available before we try to use it
+if ! command -v ncdump &> /dev/null
+then
+  print_err_msg_exit "\
+The utility 'ncdump' was not found in the environment. Be sure to add the
+netCDF 'bin/' directory to your PATH."
+fi
+
 # Make the following (reading of res_equiv) a function in another file
 # so that it can be used both here and in the exregional_make_orog.sh
 # script.

scripts/exregional_make_ics.sh

@@ -27,7 +27,7 @@
 #
 #-----------------------------------------------------------------------
 #
-scrfunc_fp=$( readlink -f "${BASH_SOURCE[0]}" )
+scrfunc_fp=$( $READLINK -f "${BASH_SOURCE[0]}" )
 scrfunc_fn=$( basename "${scrfunc_fp}" )
 scrfunc_dir=$( dirname "${scrfunc_fp}" )
 #
@@ -126,6 +126,20 @@ case "$MACHINE" in
     APRUN="ibrun"
     ;;
 
+  "MACOS")
+    APRUN=$RUN_CMD_UTILS
+    ;;
+
+  "LINUX")
+    APRUN=$RUN_CMD_UTILS
+    ;;
+
+  *)
+    print_err_msg_exit "\
+Run command has not been specified for this machine:
+  MACHINE = \"$MACHINE\""
+    ;;
+
 esac
 #
 #-----------------------------------------------------------------------