simple dwm bar

#!/bin/bash

w_date(){
    w_date="$(date +" %B %d  %H:%M")"
    echo -e "$w_date"
}

w_bat(){
    bat_cap="$(cat /sys/class/power_supply/BAT0/capacity)"
    bat_stat="$(cat /sys/class/power_supply/BAT0/status)"

    if [[ "$bat_stat" == "Charging" ]]
    then
        echo -e " $bat_cap%"
    elif [[ "$bat_cap" == "100" ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 90 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 80 ]] && [[ $bat_cap < 91 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 70 ]] && [[ $bat_cap < 81 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 60 ]] && [[ $bat_cap < 71 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 50 ]] && [[ $bat_cap < 61 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 40 ]] && [[ $bat_cap < 51 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 30 ]] && [[ $bat_cap < 41 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 20 ]] && [[ $bat_cap < 31 ]]
    then
        echo -e " $bat_cap%"
    elif [[ $bat_cap > 10 ]] && [[ $bat_cap < 21 ]]
    then
        echo -e " $bat_cap%"
    else
        echo -e " $bat_cap%"
    fi

}

w_vol(){
    vol="$(pamixer --get-volume-human)"
    if [[ "$vol" == "muted" ]]
    then
        echo " off"
    else
        vol_s="$(echo $vol | sed 's/.$//')"
        if [[ $vol_s > 50 ]] || [[ "$vol_s" == "100" ]]
        then
            echo " $vol"
        else
            echo " $vol"
        fi
    fi
}

set_name(){
    xsetroot -name "$(w_date) | $(w_bat) | $(w_vol) |"
}