add script to compare all active config parameters of any 2 config files

Former-commit-id: 89beaf2460e969c3ee18e03fe539de5833dba50a

utils/compare_config.sh

@@ -0,0 +1,40 @@
+#! /bin/bash
+
+if [[ "$1" == "--help" ]] || [[ "$1" == "-h" ]] || [[ "$#" -ne 2 ]] ; then
+	echo "This script is used to compare different KeyDB configuration files."
+	echo ""
+	echo "	Usage:  compare_config.sh [keydb1.conf] [keydb2.conf]"
+	echo ""
+	echo "Output: a side by side sorted list of all active parameters, followed by a summary of the differences."
+	exit 0
+fi
+
+conf_1=$(mktemp)
+conf_2=$(mktemp)
+
+echo "----------------------------------------------------"
+echo "--- display all active parameters in config files---"
+echo "----------------------------------------------------"
+echo ""
+echo "--- $1 ---" > $conf_1
+echo "" >> $conf_1
+grep -ve "^#" -ve "^$" $1 | sort >> $conf_1
+echo "--- $2 ---" >> $conf_2
+echo "" >> $conf_2
+grep -ve "^#" -ve "^$" $2 | sort >> $conf_2
+
+pr -T --merge $conf_1 $conf_2
+
+echo ""
+echo ""
+echo "--------------------------------------------"
+echo "--- display config file differences only ---"
+echo "--------------------------------------------"
+echo ""
+
+sdiff --suppress-common-lines $conf_1 $conf_2
+
+rm $conf_1
+rm $conf_2
+
+exit 0