Comparing numbers in Bash

Question

I\'m starting to learn about writing scripts for the bash terminal, but I can\'t work out how to get the comparisons to work properly. The script I\'m using is:

Answer 1

In bash, you should do your check in arithmetic context:

if (( a > b )); then
    ...
fi

For POSIX shells that don't support (()), you can use -lt and -gt.

if [ "$a" -gt "$b" ]; then
    ...
fi

You can get a full list of comparison operators with help test or man test.