See how it looks like here

Pace is possessions per 48 minutes
Efficiency is points per 100 possessions
eFG is the equivalent field goal percentage
FT/FG is the ratio of made free throws to attempted field goals
OREB% is the percentage of offensive rebounds among the total rebound opportunities
TOr, the turnover ratio, is defined as turnovers per 100 possessions

See this Kevin Pelton article for more on the basketball four factors, and read this APBRmetrics thread for discussion on the script.

Updated to version 0.3, with support for the 2007-08 boxscore format, on 2007-10-31