Remove implicit symlink names (#2527)

Lustre has a defect under Rocky 9 that results in symlink sometimes failing when the link name is not explicit. This updates all link creation to use explicit names. `config.base` is updated to turn off two monitor jobs on Hercules because the executables are not yet built there. This, combined with the previous change, should make workflow available for use on Hercules. Also removes the redundant utility names for NCP, NLN, etc. in the gdas scripts that are already defined in `config.base`. Resolves #2131 Resolves #2522
NOAA-EMC · Apr 30, 2024 · 53b6764 · 53b6764
1 parent 762f040
commit 53b6764
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Showing 57 changed files with 121 additions and 160 deletions.
diff --git a/gempak/ush/gdas_ecmwf_meta_ver.sh b/gempak/ush/gdas_ecmwf_meta_ver.sh
@@ -24,7 +24,7 @@ fi
 
 export COMIN="gdas.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 vergrid="F-GDAS | ${PDY:2}/0600"
 fcsthr="0600f006"
@@ -49,7 +49,7 @@ for area in ${areas}; do
         sdatenum=$(date --utc +%y%m%d -d "${PDY} ${cyc2} - ${fhr} hours")
 
         if [[ ! -L "ecmwf.20${sdatenum}" ]]; then
-            ln -sf "${COMINecmwf}/ecmwf.20${sdatenum}/gempak" "ecmwf.20${sdatenum}"
+            ${NLN} "${COMINecmwf}/ecmwf.20${sdatenum}/gempak" "ecmwf.20${sdatenum}"
         fi
         gdfile="ecmwf.20${sdatenum}/ecmwf_glob_20${sdatenum}12"
 

diff --git a/gempak/ush/gdas_meta_loop.sh b/gempak/ush/gdas_meta_loop.sh
@@ -13,7 +13,7 @@ device="nc | gdasloop.meta"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L "${COMIN}" ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 if [[ "${envir}" == "para" ]] ; then
@@ -41,7 +41,7 @@ for (( fhr=24; fhr<=144; fhr+=24 )); do
         YMD=${day} HH=${cyc} GRID=1p00 declare_from_tmpl "COM_ATMOS_GEMPAK_1p00_past:COM_ATMOS_GEMPAK_TMPL"
         export COMIN="${RUN}.${day}${cycle}"
         if [[ ! -L "${COMIN}" ]]; then
-            ln -sf "${COM_ATMOS_GEMPAK_1p00_past}" "${COMIN}"
+            ${NLN} "${COM_ATMOS_GEMPAK_1p00_past}" "${COMIN}"
         fi
         gdfile="${COMIN}/gdas_1p00_${day}${cycle}f000"
 

diff --git a/gempak/ush/gdas_meta_na.sh b/gempak/ush/gdas_meta_na.sh
@@ -13,7 +13,7 @@ device="nc | gdas.meta"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L "${COMIN}" ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 if [[ "${envir}" == "para" ]] ; then

diff --git a/gempak/ush/gdas_ukmet_meta_ver.sh b/gempak/ush/gdas_ukmet_meta_ver.sh
@@ -23,7 +23,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 # SET CURRENT CYCLE AS THE VERIFICATION GRIDDED FILE.
 export COMIN="gdas.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 vergrid="F-GDAS | ${PDY:2}/0600"
 fcsthr="0600f006"
@@ -54,7 +54,7 @@ for area in ${areas}; do
         cyclenum=${stime:6}
 
         if [[ ! -L "ukmet.20${sdatenum}" ]]; then
-            ln -sf "${COMINukmet}/ukmet.20${sdatenum}/gempak" "ukmet.20${sdatenum}"
+            ${NLN} "${COMINukmet}/ukmet.20${sdatenum}/gempak" "ukmet.20${sdatenum}"
         fi
         gdfile="ukmet.20${sdatenum}/ukmet_20${sdatenum}${cyclenum}${dgdattim}"
 

diff --git a/gempak/ush/gfs_meta_ak.sh b/gempak/ush/gfs_meta_ak.sh
@@ -20,7 +20,7 @@ device="nc | gfs.meta.ak"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 fend=F216

diff --git a/gempak/ush/gfs_meta_bwx.sh b/gempak/ush/gfs_meta_bwx.sh
@@ -21,7 +21,7 @@ device="nc | ${metaname}"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 fend=F180

diff --git a/gempak/ush/gfs_meta_comp.sh b/gempak/ush/gfs_meta_comp.sh
@@ -29,14 +29,14 @@ for cycle in $(seq -f "%02g" -s ' ' 0  "${STEP_GFS}" "${cyc}"); do
     for file_in in "${gempak_dir}/gfs_1p00_${PDY}${cycle}f"*; do
         file_out="${COMIN}/$(basename "${file_in}")"
         if [[ ! -L "${file_out}" ]]; then
-            ln -sf "${file_in}" "${file_out}"
+            ${NLN} "${file_in}" "${file_out}"
         fi
     done
 done
 
 export HPCNAM="nam.${PDY}"
 if [[ ! -L ${HPCNAM} ]]; then
-    ln -sf "${COMINnam}/nam.${PDY}/gempak" "${HPCNAM}"
+    ${NLN} "${COMINnam}/nam.${PDY}/gempak" "${HPCNAM}"
 fi
 
 #
@@ -100,7 +100,7 @@ for gareas in US NP; do
         HPCGFS="${RUN}.${init_time}"
         if [[ ! -L ${HPCGFS} ]]; then
             YMD="${init_PDY}" HH="${init_cyc}" GRID="1p00" declare_from_tmpl source_dir:COM_ATMOS_GEMPAK_TMPL
-            ln -sf "${source_dir}" "${HPCGFS}"
+            ${NLN} "${source_dir}" "${HPCGFS}"
         fi
 
         if [[ ${init_PDY} == "${PDY}" ]]; then
@@ -230,7 +230,7 @@ EOF
         ukmet_cyc=${ukmet_date:8:2}
         export HPCUKMET=ukmet.${ukmet_PDY}
         if [[ ! -L "${HPCUKMET}" ]]; then
-            ln -sf "${COMINukmet}/ukmet.${ukmet_PDY}/gempak" "${HPCUKMET}"
+            ${NLN} "${COMINukmet}/ukmet.${ukmet_PDY}/gempak" "${HPCUKMET}"
         fi
         grid2="F-UKMETHPC | ${ukmet_PDY:2}/${ukmet_date}"
 

diff --git a/gempak/ush/gfs_meta_crb.sh b/gempak/ush/gfs_meta_crb.sh
@@ -23,7 +23,7 @@ device="nc | ${metaname}"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 # DEFINE YESTERDAY
@@ -254,13 +254,13 @@ if [[ ${cyc} == 00 ]] ; then
     HPCECMWF_m1=ecmwf.${PDY}
     export HPCUKMET=ukmet.${PDYm1}
     if [[ ! -L "${HPCECMWF}" ]]; then
-        ln -sf "${COMINecmwf}ecmwf.${PDY}/gempak" "${HPCECMWF}"
+        ${NLN} "${COMINecmwf}ecmwf.${PDY}/gempak" "${HPCECMWF}"
     fi
     if [[ ! -L "${HPCECMWF_m1}" ]]; then
-        ln -sf "${COMINecmwf}ecmwf.${PDYm1}/gempak" "${HPCECMWF_m1}"
+        ${NLN} "${COMINecmwf}ecmwf.${PDYm1}/gempak" "${HPCECMWF_m1}"
     fi
     if [[ ! -L "${HPCUKMET}" ]]; then
-        ln -sf "${COMINukmet}/ukmet.${PDYm1}/gempak" "${HPCUKMET}"
+        ${NLN} "${COMINukmet}/ukmet.${PDYm1}/gempak" "${HPCUKMET}"
     fi
 
     grid1="F-${MDL} | ${PDY:2}/${cyc}00"

diff --git a/gempak/ush/gfs_meta_hi.sh b/gempak/ush/gfs_meta_hi.sh
@@ -17,7 +17,7 @@ device="nc | mrfhi.meta"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 if [[ "${envir}" = "prod" ]] ; then

diff --git a/gempak/ush/gfs_meta_hur.sh b/gempak/ush/gfs_meta_hur.sh
@@ -23,7 +23,7 @@ device="nc | ${metaname}"
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 #
@@ -307,13 +307,13 @@ if [[ ${cyc} -eq 00 ]] ; then
     HPCECMWF_m1=ecmwf.${PDY}
     export HPCUKMET=ukmet.${PDYm1}
     if [[ ! -L "${HPCECMWF}" ]]; then
-        ln -sf "${COMINecmwf}ecmwf.${PDY}/gempak" "${HPCECMWF}"
+        ${NLN} "${COMINecmwf}ecmwf.${PDY}/gempak" "${HPCECMWF}"
     fi
     if [[ ! -L "${HPCECMWF_m1}" ]]; then
         Ln -sf "${COMINecmwf}ecmwf.${PDYm1}/gempak" "${HPCECMWF_m1}"
     fi
     if [[ ! -L "${HPCUKMET}" ]]; then
-        ln -sf "${COMINukmet}/ukmet.${PDYm1}/gempak" "${HPCUKMET}"
+        ${NLN} "${COMINukmet}/ukmet.${PDYm1}/gempak" "${HPCUKMET}"
     fi
     grid1="F-${MDL} | ${PDY:2}/${cyc}00"
     grid2="${HPCECMWF_m1}/ecmwf_glob_${PDYm1}12"

diff --git a/gempak/ush/gfs_meta_mar_atl.sh b/gempak/ush/gfs_meta_mar_atl.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_mar_comp.sh b/gempak/ush/gfs_meta_mar_comp.sh
@@ -20,7 +20,7 @@ for cycle in $(seq -f "%02g" -s ' ' 0 "${STEP_GFS}" "${cyc}"); do
     for file_in in "${gempak_dir}/gfs_1p00_${PDY}${cycle}f"*; do
         file_out="${COMIN}/$(basename "${file_in}")"
         if [[ ! -L "${file_out}" ]]; then
-            ln -sf "${file_in}" "${file_out}"
+            ${NLN} "${file_in}" "${file_out}"
         fi
     done
 done
@@ -31,7 +31,7 @@ done
 #
 export HPCNAM="nam.${PDY}"
 if [[ ! -L ${HPCNAM} ]]; then
-    ln -sf "${COMINnam}/nam.${PDY}/gempak" "${HPCNAM}"
+    ${NLN} "${COMINnam}/nam.${PDY}/gempak" "${HPCNAM}"
 fi
 
 mdl=gfs
@@ -77,7 +77,7 @@ for garea in NAtl NPac; do
         HPCGFS="${RUN}.${init_time}"
         if [[ ! -L ${HPCGFS} ]]; then
             YMD="${init_PDY}" HH="${init_cyc}" GRID="1p00" declare_from_tmpl source_dir:COM_ATMOS_GEMPAK_TMPL
-            ln -sf "${source_dir}" "${HPCGFS}"
+            ${NLN} "${source_dir}" "${HPCGFS}"
         fi
 
         case ${cyc} in
@@ -222,7 +222,7 @@ EOF
 
         export HPCUKMET="ukmet.${ukmet_PDY}"
         if [[ ! -L "${HPCUKMET}" ]]; then
-            ln -sf "${COMINukmet}/ukmet.${ukmet_PDY}/gempak" "${HPCUKMET}"
+            ${NLN} "${COMINukmet}/ukmet.${ukmet_PDY}/gempak" "${HPCUKMET}"
         fi
         grid2="F-UKMETHPC | ${ukmet_PDY:2}/${ukmet_date}"
 
@@ -310,7 +310,7 @@ EOF
 
         HPCECMWF=ecmwf.${PDY}
         if [[ ! -L "${HPCECMWF}" ]]; then
-            ln -sf "${COMINecmwf}/ecmwf.${ecmwf_PDY}/gempak" "${HPCECMWF}"
+            ${NLN} "${COMINecmwf}/ecmwf.${ecmwf_PDY}/gempak" "${HPCECMWF}"
         fi
         grid2="${HPCECMWF}/ecmwf_glob_${ecmwf_date}"
 

diff --git a/gempak/ush/gfs_meta_mar_pac.sh b/gempak/ush/gfs_meta_mar_pac.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_mar_ql.sh b/gempak/ush/gfs_meta_mar_ql.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_mar_skewt.sh b/gempak/ush/gfs_meta_mar_skewt.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_mar_ver.sh b/gempak/ush/gfs_meta_mar_ver.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_nhsh.sh b/gempak/ush/gfs_meta_nhsh.sh
@@ -15,7 +15,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 if [[ "${envir}" == "para" ]] ; then

diff --git a/gempak/ush/gfs_meta_opc_na_ver b/gempak/ush/gfs_meta_opc_na_ver
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs
@@ -64,7 +64,7 @@ for lookback in "${lookbacks[@]}"; do
     HPCGFS="${RUN}.${init_time}"
     if [[ ! -L ${HPCGFS} ]]; then
         YMD=${init_PDY} HH=${init_cyc} GRID="1p00" declare_from_tmpl source_dir:COM_ATMOS_GEMPAK_TMPL
-        ln -sf "${source_dir}" "${HPCGFS}"
+        ${NLN} "${source_dir}" "${HPCGFS}"
     fi
 
     grid="F-${MDL2} | ${init_PDY}/${init_cyc}00"

diff --git a/gempak/ush/gfs_meta_opc_np_ver b/gempak/ush/gfs_meta_opc_np_ver
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs
@@ -64,7 +64,7 @@ for lookback in "${lookbacks[@]}"; do
     HPCGFS="${RUN}.${init_time}"
     if [[ ! -L "${HPCGFS}" ]]; then
         YMD=${init_PDY} HH=${init_cyc} GRID="1p00" declare_from_tmpl source_dir:COM_ATMOS_GEMPAK_TMPL
-        ln -sf "${source_dir}" "${HPCGFS}"
+        ${NLN} "${source_dir}" "${HPCGFS}"
     fi
 
     grid="F-${MDL2} | ${init_PDY}/${init_cyc}00"

diff --git a/gempak/ush/gfs_meta_precip.sh b/gempak/ush/gfs_meta_precip.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 #

diff --git a/gempak/ush/gfs_meta_qpf.sh b/gempak/ush/gfs_meta_qpf.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_sa.sh b/gempak/ush/gfs_meta_sa.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_sa2.sh b/gempak/ush/gfs_meta_sa2.sh
@@ -20,7 +20,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export HPCGFS="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${HPCGFS} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${HPCGFS}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${HPCGFS}"
 fi
 
 mdl=gfs
@@ -38,10 +38,10 @@ PDYm1="$(date --utc +%Y%m%d -d "${PDY} ${cyc} - 24 hours")"
 HPCECMWF="ecmwf.${PDYm1}"
 HPCUKMET="ukmet.${PDY}"
 if [[ ! -L "${HPCECMWF}" ]]; then
-    ln -sf "${COMINecmwf}/ecmwf.${PDYm1}/gempak" "${HPCECMWF}"
+    ${NLN} "${COMINecmwf}/ecmwf.${PDYm1}/gempak" "${HPCECMWF}"
 fi
 if [[ ! -L "${HPCUKMET}" ]]; then
-    ln -sf "${COMINukmet}/ukmet.${PDY}/gempak" "${HPCUKMET}"
+    ${NLN} "${COMINukmet}/ukmet.${PDY}/gempak" "${HPCUKMET}"
 fi
 
 "${GEMEXE}/gdplot2_nc" << EOF

diff --git a/gempak/ush/gfs_meta_trop.sh b/gempak/ush/gfs_meta_trop.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 mdl=gfs

diff --git a/gempak/ush/gfs_meta_us.sh b/gempak/ush/gfs_meta_us.sh
@@ -17,7 +17,7 @@ cp "${HOMEgfs}/gempak/fix/datatype.tbl" datatype.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 device="nc | gfs.meta"

diff --git a/gempak/ush/gfs_meta_usext.sh b/gempak/ush/gfs_meta_usext.sh
@@ -16,7 +16,7 @@ cp "${HOMEgfs}/gempak/fix/ak_sfstns.tbl" alaska.tbl
 #
 export COMIN="${RUN}.${PDY}${cyc}"
 if [[ ! -L ${COMIN} ]]; then
-    ln -sf "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
+    ${NLN} "${COM_ATMOS_GEMPAK_1p00}" "${COMIN}"
 fi
 
 device="nc | mrf.meta"