diff --git a/build-core.sh b/build-core.sh
index d06d029bc..be73bd348 100755
--- a/build-core.sh
+++ b/build-core.sh
@@ -1,4 +1,9 @@
-#!/bin/bash
+#!/bin/bash -u
+# We use set -e and bash with -u to bail on first non zero exit code of any
+# processes launched or upon any unbound variable.
+# We use set -x to print commands before running them to help with
+# debugging.
+set -ex
 
 set -e
 
diff --git a/build-full.sh b/build-full.sh
index 14666b652..643adfb13 100755
--- a/build-full.sh
+++ b/build-full.sh
@@ -1,4 +1,9 @@
-#!/bin/bash
+#!/bin/bash -u
+# We use set -e and bash with -u to bail on first non zero exit code of any
+# processes launched or upon any unbound variable.
+# We use set -x to print commands before running them to help with
+# debugging.
+set -ex
 
 set -e
 
diff --git a/release-builder.sh b/release-builder.sh
index 7c070ac42..eb3fb6c09 100755
--- a/release-builder.sh
+++ b/release-builder.sh
@@ -1,4 +1,9 @@
-#!/bin/bash
+#!/bin/bash -u
+# We use set -e and bash with -u to bail on first non zero exit code of any
+# processes launched or upon any unbound variable.
+# We use set -x to print commands before running them to help with
+# debugging.
+set -ex
 
 set -e