Geek like mac & linux terminal using zsh

.zshrc

# Output of following zsh configuration https://ibb.co/Yb2YM4C
# Step1: Install zsh using 
# brew install zsh
# Step2: nano ~/.zshrc
# Step3: Paste following configuration
# For further steps to install fonts & color scheme click on following
# https://www.freecodecamp.org/news/how-to-configure-your-macos-terminal-with-zsh-like-a-pro-c0ab3f3c1156/
# Enjoy new terminal theme like a pro... :)
#export LSCOLORS=ExGxBxDxCxEgEdxbxgxcxd
unset LSCOLORS
export TERM="xterm-256color"
export CLICOLOR=1
export CLICOLOR_FORCE=1
export LSCOLORS=ExGxabDxCxEgEdxbxgFaBa
#zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}

source  ~/system/powerlevel9k/powerlevel9k.zsh-theme
POWERLEVEL9K_MODE='nerdfont-complete'
POWERLEVEL9K_CUSTOM_WIFI_SIGNAL="zsh_wifi_signal"
POWERLEVEL9K_CUSTOM_WIFI_SIGNAL_BACKGROUND="white"
POWERLEVEL9K_CUSTOM_WIFI_SIGNAL_FOREGROUND="black"

# zsh wifi signal Linux
zsh_wifi_signal(){
        local speed=$(nmcli device wifi | grep "*" | awk '{print $5}')
	local strength=$(nmcli device wifi | grep "*" | awk '{print $7}')
	local strength_bar=$(nmcli device wifi | grep "*" | awk '{print $8}')
        local color='%F{white}'
        local strength_color='%F{white}'

        [[ $speed -gt 100 ]] && color='%F{green}'
        [[ $speed -lt 50 ]] && color='%F{red}'

        [[ $strength -gt 59 ]] && strength_color='%F{green}'
        [[ $strength -gt 49 && $strength -lt 60 ]] && strength_color='%F{yellow}'
        [[ $strength -lt 50 ]] && strength_color='%F{red}'

       # echo -n "%{$color%}\uf1eb  $speed Mbps%{%f%}" # \uf230 is 
        echo -n "%{$strength_color%} $strength_bar $strength %{$color%} $speed Mbps%{%f%}" # \uf230 is 
}

# zsh wifi singal Mac
zsh_wifi_signal_mac(){
        local output=$(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -I)
        local airport=$(echo $output | grep 'AirPort' | awk -F': ' '{print $2}')

        if [ "$airport" = "Off" ]; then
                local color='%F{black}'
                echo -n "%{$color%}Wifi Off"
        else
                local ssid=$(echo $output | grep ' SSID' | awk -F': ' '{print $2}')
                local speed=$(echo $output | grep 'lastTxRate' | awk -F': ' '{print $2}')
                local color='%F{black}'

                [[ $speed -gt 100 ]] && color='%F{black}'
                [[ $speed -lt 50 ]] && color='%F{red}'

                echo -n "%{$color%}$speed Mbps \uf1eb%{%f%}" # removed char not in my PowerLine font
        fi
}

POWERLEVEL9K_CONTEXT_TEMPLATE='%n'
POWERLEVEL9K_CONTEXT_DEFAULT_FOREGROUND='yellow'
POWERLEVEL9K_BATTERY_CHARGING='yellow'
POWERLEVEL9K_BATTERY_CHARGED='green'
POWERLEVEL9K_BATTERY_DISCONNECTED='$DEFAULT_COLOR'
POWERLEVEL9K_BATTERY_LOW_THRESHOLD='10'
POWERLEVEL9K_BATTERY_LOW_COLOR='red'
POWERLEVEL9K_MULTILINE_FIRST_PROMPT_PREFIX=''
POWERLEVEL9K_BATTERY_ICON='\uf1e6 '
POWERLEVEL9K_PROMPT_ON_NEWLINE=true
POWERLEVEL9K_MULTILINE_LAST_PROMPT_PREFIX="%F{014}\u2570%F{cyan}\uF460%F{073}\uF460%F{109}\uF460%f "
POWERLEVEL9K_VCS_MODIFIED_BACKGROUND='yellow'
POWERLEVEL9K_VCS_UNTRACKED_BACKGROUND='yellow'
POWERLEVEL9K_VCS_UNTRACKED_ICON='?'
POWERLEVEL9K_VCS_UNTRACKED_ICON='\u25CF'
POWERLEVEL9K_VCS_UNSTAGED_ICON='\u00b1'
POWERLEVEL9K_VCS_INCOMING_CHANGES_ICON='\u2193'
POWERLEVEL9K_VCS_OUTGOING_CHANGES_ICON='\u2191'
POWERLEVEL9K_VCS_COMMIT_ICON="\uf417"

POWERLEVEL9K_COMMAND_EXECUTION_TIME_THRESHOLD=0
POWERLEVEL9K_COMMAND_EXECUTION_TIME_BACKGROUND='245'
POWERLEVEL9K_COMMAND_EXECUTION_TIME_FOREGROUND='black'
#POWERLEVEL9K_COMMAND_EXECUTION_TIME_BACKGROUND='clear'
#POWERLEVEL9K_COMMAND_EXECUTION_TIME_FOREGROUND='magenta'

#POWERLEVEL_OS_ICON="\ue712"

POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(os_icon user battery dir vcs)
POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status command_execution_time dir_writable ip custom_wifi_signal ram load background_jobs)

#POWERLEVEL9K_SHORTEN_DIR_LENGTH=0

POWERLEVEL9K_TIME_FORMAT="%D{\uf017 %H:%M \uf073 %d/%m/%y}"
POWERLEVEL9K_TIME_BACKGROUND='white'
#POWERLEVEL9K_TIME_FOREGROUND="white"
POWERLEVEL9K_RAM_BACKGROUND='magenta'
POWERLEVEL9K_LOAD_CRITICAL_BACKGROUND="white"
POWERLEVEL9K_LOAD_WARNING_BACKGROUND="white"
POWERLEVEL9K_LOAD_NORMAL_BACKGROUND="white"
POWERLEVEL9K_LOAD_CRITICAL_FOREGROUND="red"
POWERLEVEL9K_LOAD_WARNING_FOREGROUND="yellow"
POWERLEVEL9K_LOAD_NORMAL_FOREGROUND="black"
POWERLEVEL9K_LOAD_CRITICAL_VISUAL_IDENTIFIER_COLOR="red"
POWERLEVEL9K_LOAD_WARNING_VISUAL_IDENTIFIER_COLOR="yellow"
POWERLEVEL9K_LOAD_NORMAL_VISUAL_IDENTIFIER_COLOR="green"
POWERLEVEL9K_HOME_ICON='\uF015'
POWERLEVEL9K_HOME_SUB_ICON='\uF07C'
POWERLEVEL9K_FOLDER_ICON=''
POWERLEVEL9K_STATUS_VERBOSE=true
POWERLEVEL9K_STATUS_CROSS=true
POWERLEVEL9K_NVM_BACKGROUND="238"
POWERLEVEL9K_NVM_FOREGROUND="green"
POWERLEVEL9K_USER_ICON="\uF415"
POWERLEVEL9K_ROOT_ICON="\uF09C"
POWERLEVEL9K_VCS_GIT_GITHUB_ICON='\uF408'
OS_ICON='\uE271'
alias ls='ls --color=auto'