Useful blog "getting genetics done"

http://gettinggeneticsdone.blogspot.com/

latexdiff - mark up differences between latex files

Determine and mark up significant differences between latex files.

http://www.ctan.org/tex-archive/support/latexdiff

This perl script will generate a latex file with changes marked up (similar to Word) from two latex files

latexdiff-so fileold.tex filenew.tex > dif.tex

ps2pdf to all ps files in current directory

for x in $(ls *.ps); do echo $x; ps2pdf $x $(echo $x|sed -e 's/ps$/pdf/');done

or more efficiently according to Yarko's comment

for x in *.ps; do
echo $x;
ps2pdf $x ${x/%ps/pdf};
done