Asked • 06/27/19

How do I test if a variable is a number in Bash?

I just can't figure out how do I make sure an argument passed to my script is a number or not. All I want to do is something like this: test *isnumber* $1 && VAR=$1 || echo "need a number" Any help?

1 Expert Answer


Eli C. answered • 11/20/19

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Software Engineering Professional With Many Years of Experience

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