Bash syntax highlighter - see http://scott.sherrillmix.com/blog/programmer/syntax-highlighting-in-terminal/

scat

#!/bin/bash
if [ ! -t 0 ];then
  file=/dev/stdin
elif [ -f $1 ];then
  file=$1
else
  echo "Usage: $0 code.c"
  echo "or e.g. cat code.c | $0"
  exit 1
fi
pygmentize -f terminal -g -O bg=dark $file