make default gen_mksurfdata generated scripts have a .sh extension

.gitignore

@@ -91,8 +91,8 @@ ctsm.input_data_list.previous
 /tools/mksurfdata_esmf/mksurfdata_in
 /tools/mksurfdata_esmf/surfdata_*.nc
 /tools/mksurfdata_esmf/landuse.timeseries_*.nc
-/tools/mksurfdata_esmf/mksurfdata_jobscript_multi
-/tools/mksurfdata_esmf/mksurfdata_jobscript_single
+/tools/mksurfdata_esmf/mksurfdata_jobscript_multi.sh
+/tools/mksurfdata_esmf/mksurfdata_jobscript_single.sh
 /tools/mksurfdata_esmf/pio_iotype.txt
 /tools/mksurfdata_esmf/*.sh
 /tools/mksurfdata_esmf/tool_bld

cime_config/SystemTests/mksurfdataesmf.py

@@ -35,7 +35,7 @@ def __init__(self, case):
         time_stamp = datetime.today().strftime("%y%m%d")
         self._res = "10x15"  # see important comment in script's docstring
         self._model_yr = "1850"
-        self._jobscript = os.path.join(self._get_caseroot(), "mksurfdata_jobscript_single")
+        self._jobscript = os.path.join(self._get_caseroot(), "mksurfdata_jobscript_single.sh")
         self._fsurdat_namelist = os.path.join(
             self._get_caseroot(),
             f"surfdata_{self._res}_hist_{self._model_yr}_78pfts_c{time_stamp}.namelist",
@@ -62,7 +62,7 @@ def build_phase(self, sharedlib_only=False, model_only=False):
             # Paths and strings
             build_script_path = os.path.join(self._tool_path, "gen_mksurfdata_build.sh")
             nml_script_path = os.path.join(self._tool_path, "gen_mksurfdata_namelist")
-            gen_jobscript_path = os.path.join(self._tool_path, "gen_mksurfdata_jobscript_single")
+            gen_jobscript_path = os.path.join(self._tool_path, "gen_mksurfdata_jobscript_single.sh")
             gen_mksurfdata_namelist = f"{nml_script_path} --res {self._res} --start-year {self._model_yr} --end-year {self._model_yr}"
             gen_mksurfdata_jobscript = f"{gen_jobscript_path} --number-of-nodes 1 --tasks-per-node 64 --namelist-file {self._fsurdat_namelist} --bld-path {self._tool_bld}"
 

python/ctsm/toolchain/gen_mksurfdata_jobscript_multi.py

@@ -66,7 +66,7 @@ def get_parser():
     """
     Get parser object for this script.
     """
-    parser = base_get_parser(default_js_name="mksurfdata_jobscript_multi")
+    parser = base_get_parser(default_js_name="mksurfdata_jobscript_multi.sh")
 
     parser.add_argument(
         "--scenario",

python/ctsm/toolchain/gen_mksurfdata_jobscript_single.py

@@ -20,7 +20,7 @@
 logger = logging.getLogger(__name__)
 
 
-def base_get_parser(default_js_name="mksurfdata_jobscript_single"):
+def base_get_parser(default_js_name="mksurfdata_jobscript_single.sh"):
     """
     Get parser object for the gen_mksurfdata_jobscript scripts
     """

tools/README

@@ -198,7 +198,7 @@ III. Process sequence to create input datasets needed to run CTSM
         gridnames.
 
     5.) Create surface datasets with mksurfdata_esmf on Derecho
-        (See mksurfdata_esmf/README for more help on doing this)
+        (See mksurfdata_esmf/README.md for more help on doing this)
 
        - gen_mksurfdata_build.sh to build
        - gen_mksurfdata_namelist to build the namelist
@@ -216,7 +216,7 @@ III. Process sequence to create input datasets needed to run CTSM
        ./gen_mksurfdata_build.sh
        ./gen_mksurfdata_namelist --res 0.9x1.25 --start-year 1850 --end-year 1850
        ./gen_mksurfdata_jobscript_single --number-of-nodes 24 --tasks-per-node 12 --namelist-file target.namelist
-       qsub mksurfdata_jobscript_single
+       qsub mksurfdata_jobscript_single.sh
 
        NOTE that surface dataset will be used by default for fatmgrid - and it will 
        contain the lat,lon,edges and area values for the atm grid - ASSUMING that 

tools/mksurfdata_esmf/README.md

@@ -153,7 +153,7 @@ for example try --res 1.9x2.5 --start-year 1850 --end-year 1850:
 ``` shell
 # Assuming pwd is the tools/mksurfdata_esmf directory
  ./gen_mksurfdata_jobscript_single --number-of-nodes 2 --tasks-per-node 128 --namelist-file target.namelist
- qsub mksurfdata_jobscript_single
+ qsub mksurfdata_jobscript_single.sh
 ```
 
  Read note about regional grids at the end.
@@ -167,7 +167,7 @@ for example try --res 1.9x2.5 --start-year 1850 --end-year 1850:
 ``` shell
 # Assuming pwd is the tools/mksurfdata_esmf directory
  ./gen_mksurfdata_jobscript_multi --number-of-nodes 2 --scenario global-present
- qsub mksurfdata_jobscript_multi
+ qsub mksurfdata_jobscript_multi.sh
 ```
 
  If you are looking to generate all (or a large number of) the datasets or the