UNIX sort with exponential values?

Please note, that your locale may assume another delimiter: For example, in russian localization ',' character delimits parts of number rather than '.'. In this case you should take into account the LANG variable.

In my case LANG was set to ru_RU.KOI8-R and so sort -g gave me wrong result.

sort with '-g' option should do the trick for you. -g option indicates 'use generic numerical value' for sorting