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    As mentioned in my answer, it doesn't split at any whitespace, it splits on characters of $IFS. By default, in bash, $IFS contains space, tab and newline which are some (of many) whitespace characters. And $(...) in list context in bash is subject to globbing which should also be disabled here with set -o noglob. Commented Aug 4 at 18:59
  • The fact that it splits on other whitespace characters is irrelevant here. The file contains spaces, and they're the problem. Setting IFS to just newline solves that. Commented Aug 4 at 19:19
  • But I've reworded to just say that it will also split on the spaces. Commented Aug 4 at 19:21
  • this worked for me. appreciate your help, thank you so much! Commented Aug 5 at 2:00