Make the shell scripts more standard compliant

[v4l2-persistent-settings.git] / v4l2-settings-restore.sh

diff --git a/v4l2-settings-restore.sh b/v4l2-settings-restore.sh
index bae3450..b255da8 100755 (executable)
--- a/v4l2-settings-restore.sh
+++ b/v4l2-settings-restore.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # v4l2-settings-restore.sh - restore v4l2 device settings
 #
@@ -15,9 +15,8 @@
 [ "$DEBUG" = "true" ] && set -x
 set -e
 
-source /etc/default/v4l2-persistent-settings || :
-
-: "${SETTINGS_DIR:=/tmp}"
+SETTINGS_DIR="/tmp"
+[ -f /etc/default/v4l2-persistent-settings ] && . /etc/default/v4l2-persistent-settings
 
 SETTINGS_FILE="${SETTINGS_DIR}/${ID_V4L_PRODUCT}.conf"