diff -ur shorewall-5.2.0.5.orig/shorewall-5.2.0.5/configfiles/shorewall.conf shorewall-5.2.0.5/shorewall-5.2.0.5/configfiles/shorewall.conf
--- shorewall-5.2.0.5.orig/shorewall-5.2.0.5/configfiles/shorewall.conf	2018-05-18 17:18:09.000000000 +0000
+++ shorewall-5.2.0.5/shorewall-5.2.0.5/configfiles/shorewall.conf	2018-07-11 17:41:38.155301202 +0000
@@ -101,7 +101,7 @@
 
 RESTOREFILE=restore
 
-SHOREWALL_SHELL=/bin/sh
+SHOREWALL_SHELL=/bin/bash
 
 SUBSYSLOCK=/var/lock/subsys/shorewall
 
diff -ur shorewall-5.2.0.5.orig/shorewall6-5.2.0.5/configfiles/shorewall6.conf shorewall-5.2.0.5/shorewall6-5.2.0.5/configfiles/shorewall6.conf
--- shorewall-5.2.0.5.orig/shorewall6-5.2.0.5/configfiles/shorewall6.conf	2018-05-18 17:18:09.000000000 +0000
+++ shorewall-5.2.0.5/shorewall6-5.2.0.5/configfiles/shorewall6.conf	2018-07-11 17:42:08.487299394 +0000
@@ -98,7 +98,7 @@
 
 RESTOREFILE=restore
 
-SHOREWALL_SHELL=/bin/sh
+SHOREWALL_SHELL=/bin/bash
 
 SUBSYSLOCK=/var/lock/subsys/shorewall6