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  • I actually like this answer too because it spelled out the unquoted part Commented Jan 15, 2017 at 5:17
  • Of course, as the other answers have said, it is also necessary to put the $i in quotes: "$(file -b "$i")". This may appear to be an improper nesting of quotes; see Bash quotes unescaped on command substitution. Commented Jan 15, 2017 at 20:43