Use --parsable sbatch option

startvnc.sh

@@ -80,6 +80,7 @@ ssh ${MISTRAL} "cat > .startvnc/${job_script}" <<EOF
 #SBATCH --time=${TIME}
 #SBATCH --account=${ACCTCODE}
 #SBATCH --output=out.%j
+#SBATCH --parsable
 ##SBATCH --dkrzepilog=0
 
 cd \${HOME}
@@ -87,8 +88,7 @@ cd \${HOME}
 EOF
 
 echo "Submitting Xvnc job."
-job_id=$(ssh ${MISTRAL} "cd .startvnc && sbatch ${job_script}" \
-                | grep -Po "\b[0-9]+$")
+job_id=$(ssh ${MISTRAL} "cd .startvnc && sbatch ${job_script}")
 
 ssh ${MISTRAL} "cat > .startvnc/vnc_gethost.${job_id}" <<EOF
 #!/bin/bash