From 4410d932eb04bf747905a4b2db4cc2d54f7498f5 Mon Sep 17 00:00:00 2001
From: "Walter.Kolczynski" <Walter.Kolczynski@noaa.gov>
Date: Sun, 12 Feb 2023 23:48:21 -0600
Subject: [PATCH] Fix syntax error with pattern matching

Corrects a syntax error with bash pattern matching, which does
not work in single square braces.

Refs: #1298
---
 ush/forecast_predet.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ush/forecast_predet.sh b/ush/forecast_predet.sh
index c2c8413eea..ae36d566a5 100755
--- a/ush/forecast_predet.sh
+++ b/ush/forecast_predet.sh
@@ -282,7 +282,7 @@ FV3_GFS_predet(){
 
 WW3_predet(){
   echo "SUB ${FUNCNAME[0]}: Defining variables for WW3"
-  if [ $CDUMP =~ "gdas" ]; then
+  if [[ $CDUMP =~ "gdas" ]]; then
     export RSTDIR_WAVE=$ROTDIR/${CDUMP}.${PDY}/${cyc}/wave/restart
   else
     export RSTDIR_WAVE=${RSTDIR_WAVE:-$ROTDIR/${CDUMP}.${PDY}/${cyc}/wave/restart}