<p>Using the same <strong>sort</strong> command with the same input produces different results on different machines.  How do I fix that?</p>

This can be the result of locale differences:
```
```
$ echo 'CO2_
CO_' | env LC_ALL=C sort
CO2_
CO_

$ echo 'CO2_
CO_' | env LC_ALL=en_US sort
CO_
CO2_
```
```
Setting the LC_ALL environment variable to the same value should correct the problem.