If RCS is used separately from CVS (e.g. for system configuration management), I sometimes want to know whether there are any uncommitted changes pending. Here’s my bash alias to get an overview:
alias rcschanges=’for file in $(for rcsfile in RCS/.??* RCS/*; do echo $rcsfile|cut -d, -f1; done); do [ -f “$(basename $file)” ] && rcsdiff $(basename $file); done’
Maybe you want rcsdiff to be an alias for a home-made rcscolordiff, which itself simply calls
rcsdiff $@ | colordiff --no-banner.