A smartish 'man' command for bash

man.sh

function man {
    local CMD=${@: -1}
    # Strangely, 'whatis' and even  'man -f' may fail to find the command.
    if whatis $CMD &>/dev/null || [[ $(info -w $CMD) == '*manpages*' ]]; then
        command man "$@"
    elif info -w &>/dev/null; then
        info "$@"
    else
        for HELP in --help -h -help --usage; do
            if $CMD $HELP &>/dev/null; then
                $CMD $HELP | less
                return
            fi
        done
    fi
}