thewoolleyman · October 17, 2010 08:54
diff --git a/output: b/output:
 $ ./subshell_var_passing1 # why is var empty in the subshell?
 local output: var=/tmp/aaa var2=/tmp/aaa
 subshell output: var= var2=/tmp/aaa
diff --git a/subshell_var_passing1 b/subshell_var_passing1
 #!/usr/bin/env bash

 echo 'aaa' > /tmp/aaa
 var=( /tmp/aaa )
 export var
 var2=$var
 export var2
 echo "local output: var=$var var2=$var2"
 echo $(./subshell_var_passing2)
diff --git a/subshell_var_passing2 b/subshell_var_passing2
 #!/usr/bin/env bash

 echo "subshell output: var=$var var2=$var2"
	$ ./subshell_var_passing1 # why is var empty in the subshell?
	local output: var=/tmp/aaa var2=/tmp/aaa
	subshell output: var= var2=/tmp/aaa
	#!/usr/bin/env bash

	echo 'aaa' > /tmp/aaa
	var=( /tmp/aaa )
	export var
	var2=$var
	export var2
	echo "local output: var=$var var2=$var2"
	echo $(./subshell_var_passing2)
	#!/usr/bin/env bash

	echo "subshell output: var=$var var2=$var2"