Random lines

some of these suggestions were sources from here

shuf -n 1 $FILE

head -$((${RANDOM} % `wc -l < file` + 1)) file | tail -1

cat $FILE | sort --random-sort | head -n 1

perl -e 'srand; rand($.) < 1 && ($line = $_) while <>; print $line;' filename

psuedo random integer bash

http://tldp.org/LDP/abs/html/randomvar.html

wordnet

http://linuxgazette.net/issue27/ayers3.html