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I have two variables that return:

echo $var1
def abc ghi

echo $var2
abc def abc abc abc

I want the output to return as ghi

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  • Doesn't look really hard. Have you tried anything on your own (at least something like comm -3 <(echo "${var1// /$'\n'}" | sort -u) <(echo "${var2// /$'\n'}" | sort -u))? Commented May 13, 2021 at 15:30
  • @oguzismail I am new to this, tried couple of things but nothing working, this is working, thanks :) Commented May 13, 2021 at 15:37
  • 1
    Need to show some of the things you've tried. stackoverflow.com/help/how-to-ask Commented May 14, 2021 at 3:56

1 Answer 1

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as per above comment, this worked for me comm -3 <(echo "${var1// /$'\n'}" | sort -u) <(echo "${var2// /$'\n'}" | sort -u)

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