add more braces

src/run-policy/run-mmpol.sh

@@ -20,7 +20,7 @@ dry_run=false
 usage()
 {
 >&2 cat << EOF
-Usage: $0 [ -h ] [ -o | --outdir ] [ -f | --output-prefix ] [-P | --policy-file] device
+Usage: $0 [ -h ] [ -o | --outdir ] [ -f | --output-prefix ] [ -P | --policy-file] device
 EOF
 exit 1
 }
@@ -84,33 +84,33 @@ fi
 device="$1"
 
 # Ensure device is specified
-if [[ -z "$device" ]]; then
+if [[ -z "${device}" ]]; then
     echo "Error: Specify either the name of a fileset or a directory path"
     usage
 fi
 
 # set default output_log_prefix if not specified in the arguments
-if [[ -z "$output_log_prefix" ]]; then
-    modified_device=$(echo "$device" | sed -e 's|^/||' -e 's|/$||' -e 's|/|-|g')
+if [[ -z "${output_log_prefix}" ]]; then
+    modified_device=$(echo "${device}" | sed -e 's|^/||' -e 's|/$||' -e 's|/|-|g')
     output_log_prefix="list-policy_${modified_device}"
 fi
 
 # create temporary working directory for list aggregation
-tmpglobal=$outdir/slurm-tmp-${SLURM_JOBID}
-tmpscratch=$outdir/slurm-tmp-${SLURM_JOBID}
+tmpglobal=${outdir}/slurm-tmp-${SLURM_JOBID}
+tmpscratch=${outdir}/slurm-tmp-${SLURM_JOBID}
 
 nodes=`scontrol show hostnames "${SLURM_JOB_NODELIST}" | tr '\n' ',' | sed -e 's/,$//'`
 cores="${SLURM_CPUS_PER_TASK}"
 
-DATESTR=`date +'%Y%m%dT%H%M%S'`
+DATESTR=$(date +'%Y%m%dT%H%M%S')
 
-policy=`basename $policy_file`
+policy=$(basename ${policy_file})
 filetag="${policy}_slurm-${SLURM_JOBID}_${DATESTR}"
 
 cmd="mmapplypolicy ${device} -I defer \
-  -P $policy_file \
-  -g $tmpglobal \
-  -s $tmpscratch \
+  -P ${policy_file} \
+  -g ${tmpglobal} \
+  -s ${tmpscratch} \
   -f ${outdir}/list-${SLURM_JOBID} \
   -M FILEPATH=${device} \
   -M JOBID=${SLURM_JOBID} \