{ stdenv, fetchurl } : stdenv.mkDerivation { name = "pv-1.1.4"; src = fetchurl { url = http://pipeviewer.googlecode.com/files/pv-1.1.4.tar.bz2; sha256 = "c8613c240ab4297f6ad346f0047138f551a093c603eeb581d5e83091cad3a559"; }; meta = { homepage = http://www.ivarch.com/programs/pv; description = "Tool for monitoring the progress of data through a pipeline"; license = "free"; }; }