stevekuznetsov · May 9, 2016 15:12
diff --git a/init.sh b/init.sh
 #!/bin/bash

 function init() {
 	source readonly.sh
 	echo "inside init: ${MY_VAR[*]}" # success
 }

 init
 echo "after init: ${MY_VAR[*]}" # failure
diff --git a/output.txt b/output.txt
 $ test.sh
 inside init: some-text
 init.sh: line 9: MY_VAR[*]: unbound variable
diff --git a/readonly.sh b/readonly.sh
 #!/bin/bash
 readonly MY_VAR=(
 	"some-text"
 )
diff --git a/test.sh b/test.sh
 #!/bin/bash

 set -o nounset
 set -o errexit
 set -o pipefail

 source init.sh

 echo "after source: ${MY_VAR[*]}"
	#!/bin/bash

	function init() {
	source readonly.sh
	echo "inside init: ${MY_VAR[*]}" # success
	}

	init
	echo "after init: ${MY_VAR[*]}" # failure
	$ test.sh
	inside init: some-text
	init.sh: line 9: MY_VAR[*]: unbound variable