From 3184448efe5c7ce4c8be20161d85f551a136168c Mon Sep 17 00:00:00 2001
From: Iru Cai <mytbk920423@gmail.com>
Date: Wed, 1 Jul 2020 22:51:45 +0800
Subject: add get_iso_label function which is useful for some iso files

---
 functions.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/functions.sh b/functions.sh
index aae9089..dba6d9d 100644
--- a/functions.sh
+++ b/functions.sh
@@ -109,6 +109,12 @@ download_iso() {
 	fatalerror "Fail to download $ISOFILE!"
 }
 
+get_iso_label() {
+	# the label of an ISO file is between two quote symbols
+	# of the file(1) output
+	file -b "$1" | cut -d\' -f2
+}
+
 mount_iso() {
 	LOOPDEV=$(/sbin/losetup -n -O NAME -j "${ISO_FILEPATH}")
 	if [[ -n "$LOOPDEV" ]]
-- 
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