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bashcomparisonprecision

Bash, compare values

Trying to get this comparison to work in bash...

As an example, I want the second "comparison" to be true by setting foo=31.26 If the value in $foo is less then or eq to 33.75 OR greater then or eq to 11.25 then "do something". This doesnt work and none if the options are "true" no matter what. What am I doing wrong?

foo="31.26"
case 1 in
 $(bc <<<"11.25 > $foo >= 348.25"))  "do something";;
 $(bc <<<"33.75 >= $foo >= 11.25"))  "do something";;
esac
Solution 
  • if (( $(echo "11.25 > $foo" | bc -l) || $(echo "$foo >= 348.25" | bc -l) ))
then
    echo false
elif (( $(echo "33.75 >= $foo" | bc -l) || $(echo "$foo >= 11.25" | bc -l) ))
then
    echo true
fi