bash or zsh config for directory-stack(`dv` show dirs, `pd $index` go to the corresponding dir

.bashrc

#===========================Alias============================
# write by junw
alias dv="dirs -v"
alias pd=jump_to_dir
#=========================Function===========================
function jump_to_dir() {
    if [ "$1" != "" ] ;then
        pushd -$1 &> /dev/null
        echo -e "${RED}Jump${NOCOLOR} to ${GREEN}${PWD}${NOCOLOR}"
    else
        echo "switch stack top"
        pushd &> /dev/null
#pushd &> /dev/null
    fi
}
#==========================Export===========================
# Function to open proxy
pxon() {
    export http_proxy=http://child-prc.intel.com:913
    export https_proxy=http://child-prc.intel.com:913
}
# Function to open proxy
pxoff() {
    export http_proxy=""
    export https_proxy=""
}