envsub | NPM - envsub is envsubst for Node.js | Runtime Evironment library

After running my terragrunt apply-all in my CI step (so basically a bash script) I get my outputs, in this case I only have one:

I have a bash script that takes a comma-delimited list of file paths, parses them into an array, then performs an environment variable replace function ([envsubst][1]) on each of the files. One of the paths, however, contains a space, and as of right now it's not an option to rename the folder. Is there a way to escape the space in the file and pass this into my script, as a parameter, so that second and path do not wind up being interpreted as two separate variables? I've tried a number of attempts I've seen in SO/online posts including:

second\ path/file.txt

second%qpath/file.txt

'second path/file.txt'

"second path/file.txt"

Each one of these winds up with the function splitting the words 'second' and 'path/file.txt'.

CLI

$sh envsub.sh first/path.txt,second path/file.txt

sh script