From 8790ccde667757245931ca3ab04e557a12d526b3 Mon Sep 17 00:00:00 2001
From: Brandon Rozek <brozek@brandonrozek.com>
Date: Wed, 29 Mar 2023 21:25:00 -0400
Subject: [PATCH] Argument count check

---
 run_spectra.sh | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/run_spectra.sh b/run_spectra.sh
index 4d2de45..a5e6845 100755
--- a/run_spectra.sh
+++ b/run_spectra.sh
@@ -1,6 +1,18 @@
 #!/bin/sh
 
-# TODO: Argument check and show usage
+set -o errexit
+set -o nounset
+
+show_usage() {
+    echo "Usage: ./run_spectra.sh [FILENAME]"
+    exit 1
+}
+
+# Check argument count
+if [ "$#" -ne 1 ]; then
+    show_usage
+fi
+
 
 mvn -q exec:java -Dexec.mainClass="com.naveensundarg.planner.utils.Runner" -Dexec.args="$1"