cisco-like-help.sh

#!/bin/bash
# don't run this, source it
# source cisco-like-help.sh

function ciscolikehelp() {
    if [[ $READLINE_POINT=${#READLINE_LINE} && "$READLINE_LINE" =~ \ $ ]]; then
        cmd="$( sed -e 's/.*[;|]//' -e "s/ .*//g" <<< "$READLINE_LINE" )"

        pcmd=$( type -P $cmd )
        TYPE=$( type -t ${pcmd:-$cmd} )

        case "$cmd-$TYPE" in
            *-builtin)
                echo 
                echo "-----:= $READLINE_LINE help"
                help $cmd | less -E
                return
                ;;

            ip-*)
                echo 
                echo "-----:= $READLINE_LINE help"
                $READLINE_LINE help | less -E
                return
                ;;

            *-file)
                echo 
                echo "-----:= $cmd --help"
                $cmd --help | less -E
                return
                ;;
        esac

        READLINE_LINE+=?
        READLINE_POINT=$(( READLINE_POINT + 1 ))
    fi
}

function enableciscolikehelp() {
    bind -x '"?":ciscolikehelp'
    alias clh=disableciscolikehelp
    export CLHS="?"
}

function disableciscolikehelp() {
    bind $'\077':self-insert
    alias clh=enableciscolikehelp
    unset CHLS
}

enableciscolikehelp