Compare negative numbers in bash
bash, comparison, negative-number
Solution
Seems to work correctly:
if [[ "-2" -gt "-1" ]]; then
echo "-2 >-1"
else
echo "-2 <=-1"
fi
Output:
-2 <=-1
You might want to use `((...))` which enables the expression to be evaluated according to rules of Shell Arithmetic.
$ ((-2 <= -1)) && echo Smaller or equal || echo Larger
Smaller or equal
$ ((-2 <= -3)) && echo Smaller or equal || echo Larger
Larger
Problem
How can i accomplish number comparison involving negative numbers? ``` if [[ "-2" > "-1" ]]; then echo "-2 >-1" else echo "-2 <=-1" fi ``` I also tried ``` if [ '-2' -lt '-1' ]; then ``` but the condition always behaves as if -2 would be greater than -1. The comparisons work when i do not use negative numbers. I would like a solution in pure bash if possible.