coqwc  -  print the number of specification, proof and comment lines in
       Coq files
       coqwc [ -p ] [ -s ] [ -r ] [ -e ] files ...
       coqwc computes the number  of  specification  lines,  proof  lines  and
       comment lines in Coq files.
       -p     Print the percentage of comments
       -s     Print only the number of specification lines
       -r     Print only the number of proof lines
       -e     Do not skip headers
       Please report any bug to coq-bugs@pauillac.inria.fr