Example usage doesn't work on GNU/Linux
Possibly just worth a mention that the example usage given:
- sort file | uniq -c | sort -n
doesn't work on Linux. uniq pads the count value on each line with some whitespace, and sort expects the first character on the line to be numeric, otherwise it doesn't perform a numeric sort. The command line given will not work as described because the first character on each line piped into sort is non-numeric. 188.8.131.52 (talk) 12:57, 21 December 2008 (UTC)
Article gives advice on how to do something
The first section of the article says "Be careful, uniq expects its input to be already sorted; sometimes sort -u is what you need." It should probably be reworded to sound more encyclopaedic or removed altogether.