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dwm-bash_bar
Executable file
306
dwm-bash_bar
Executable file
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#!/bin/bash
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######################
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## GLOBAL VARIABLES ##
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######################
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## Temporary files
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##
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dir="/tmp/"
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file_volume="$dir.volume.txt"
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file_battery="$dir.battery.txt"
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file_brightness="$dir.brightness.txt"
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file_date="$dir.date.txt"
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file_status="$dir.status.txt"
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file_weather="$dir.weather.txt"
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file_ssh="$dir.ssh.txt"
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file_network="$dir.network.txt"
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file_final="$dir.final"
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## Other shared values
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##
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actual_brightness="/sys/class/backlight/amdgpu_bl0/brightness"
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####################
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## MAIN FUNCTIONS ##
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####################
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## Start it all
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##
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function start-loop {
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# if the argument is empty then run the update-weather (otherwise takes long time to update if and shows latesrt value only.. =[) set-bar function
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if [ -z "$1" ]
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then
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update-weather
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set-bar
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# else run given control function
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else
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$1 $2
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fi
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}
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## Main update string
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##
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function update-all {
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# declare the output string from each of the functions
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final_volume=$(cat "$file_volume")
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final_battery=$(cat "$file_battery")
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final_brightness=$(cat "$file_brightness")
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final_date=$(cat "$file_date")
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final_status=$(cat "$file_status")
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final_weather=$(cat "$file_weather")
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final_ssh=$(cat "$file_ssh")
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final_network=$(cat "$file_network")
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# generate the final output string to be given to the bar
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final_string="$final_network $final_ssh $final_status $final_battery $final_brightness $final_volume $final_weather $final_date "
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last_string=$(cat "$file_final")
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# check if any changes between the last string and the current bar string
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if [ "$final_string" == "$last_string" ]
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then
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exit 0;
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else
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# if needed update final bar string
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xsetroot -name "$final_string"
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echo $final_string > "$file_final"
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fi
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}
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## Main bar loop
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##
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function set-bar {
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# variables holding values in seconds
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declare -i status_loop=1
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declare -i date_loop=60
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declare -i battery_loop=178
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declare -i volume_loop=35997
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declare -i network_loop=4
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declare -i ssh_loop=9
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declare -i brightness_loop=35996
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declare -i weather_loop=175
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# start relevant update-* function every N seconds
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while true; do
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if (( date_loop==60 )); then
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update-date
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date_loop=1
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else
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((date_loop++))
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fi
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if (( battery_loop==180 )); then
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update-battery
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battery_loop=1
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else
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((battery_loop++))
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fi
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if (( volume_loop==36000 )); then
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update-volume
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volume_loop=1
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else
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((volume_loop++))
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fi
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if (( network_loop==5 )); then
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update-network
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network_loop=1
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else
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((network_loop++))
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fi
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if (( ssh_loop==10 )); then
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update-ssh
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ssh_loop=1
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else
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((ssh_loop++))
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fi
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if (( brightness_loop==36000 )); then
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update-brightness
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brightness_loop=1
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else
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((brightness_loop++))
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fi
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if (( weather_loop==1800 )); then
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update-weather
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weather_loop=1
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else
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((weather_loop++))
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fi
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if (( status_loop==10 )); then
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update-status
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status_loop=1
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else
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((status_loop++))
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fi
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# make the thread sleep for 1 second
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sleep 1s
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done
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}
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###################
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## SET FUNCTIONS ##
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###################
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## Control the volume
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##
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function volume {
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# media key initiating the function with one of the below args based on config.h
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if [ "$1" == "inc" ]
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then
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amixer -c 1 set Master 2%+ &>/dev/null
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elif [ "$1" == "dec" ]
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then
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amixer -c 1 set Master 2%- &>/dev/null
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elif [ "$1" == "mute" ]
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then
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amixer -c 1 set Master 0+ toggle &>/dev/null
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fi
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# update the new string in the update-volume function
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update-volume
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}
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## Control the brightness
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##
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function brightness {
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# brightness keys initiating the function with one of the below args based on config.h
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if [ "$1" == "inc" ]
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then
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new_brightness=$(expr $(cat $actual_brightness) + 5)
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elif [ "$1" == "dec" ]
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then
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new_brightness=$(expr $(cat $actual_brightness) - 5)
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fi
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echo "$new_brightness" > $actual_brightness
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# update the new string in the update-brightness function
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update-brightness
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}
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######################
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## UPDATE FUNCTIONS ##
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######################
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## Update the volume
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##
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function update-volume {
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# string to check the current volume %
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actual_volume="$(amixer -c1 | head -5 | tail -1 | awk -F '[][]' '{print $2}')"
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# check if currently we are muted ot not
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if [ "$(amixer -c1 | head -5 | tail -1 | awk -F '[][]' '{print $6}')" == "off" ]
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then
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current_volume=""
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else
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current_volume=" $actual_volume"
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fi
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# create the temp file holding our value
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echo $current_volume > $file_volume
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# update string in the update-all function
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update-all
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}
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function update-battery {
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# get current battery state and it's capacity
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state_battery=$(cat /sys/class/power_supply/BAT0/status)
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value_battery=$(echo -e "$(cat /sys/class/power_supply/BAT0/capacity)%")
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# check if the battery is charging or not and give a different icon based on it
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if [ "$state_battery" == "Discharging" ]
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then
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string_battery=" $value_battery"
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else
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string_battery=" $value_battery"
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fi
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# create the temp file holding our value
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echo $string_battery > $file_battery
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# update string in the update-all function
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update-all
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}
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function update-brightness {
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# string holding the current brightness of the screen
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string_brightness=$(echo -e " $(cat /sys/class/backlight/amdgpu_bl0/brightness)%")
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# create the temp file holding our value
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echo -e "$string_brightness" > $file_brightness
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# update string in the update-all function
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update-all
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}
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function update-network {
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# THIS FUNCTION NEEDS MORE FUNCTIONALITY LOL
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# Check if we are connected to the wifi and show the current SSID if so, otherwise just say disconnected..
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if iwctl station wlan0 show | grep "State connected" > /dev/null
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then
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state_network=" $(iwctl station wlan0 show | cut -c 33- | head -7 | tail -1) $(ping -c5 1.1.1.1 | tail -1 | awk -F '/' '{print $5}' | awk -F '.' '{print $1}') ms"
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else
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state_network=" disconnected"
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fi
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# create the temp file holding our value
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echo -e $state_network > $file_network
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# update string in the update-all function
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update-all
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}
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function update-ssh {
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# count the number of ssh connections
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state_ssh=$(pgrep ssh | wc -l)
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if [ $state_ssh -eq 0 ]
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then
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value_ssh="N/A"
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else
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value_ssh="$state_ssh"
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fi
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# create the temp file holding our value
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echo -e "SSH:($value_ssh)" > $file_ssh
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# update string in the update-all function
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update-all
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}
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function update-status {
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# calculate the CPU percentage used from /proc/stat
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cpu_line=$(awk '{u=$2+$4; t=$2+$4+$5; if (NR==1){u1=u; t1=t;} else print ($2+$4-u1) * 100 / (t-t1) "%"; }' <(grep 'cpu ' /proc/stat) <(sleep 1;grep 'cpu ' /proc/stat))
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# split the above in 2 strings to force only 2 digits after decimal point and don't show duplicate % signs
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cpu_st1=$(echo $cpu_line | awk -F '.' '{print $1}')
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cpu_st2=$(echo $cpu_line | awk -F '.' '{print $2}' | cut -c -2 | grep -v "%")
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# string to get the load average; currently not used as no space left on the status bar.. =[
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loadav_status=$(cat /proc/loadavg | awk -F '/' '{print $1}')
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# string to get the free memory of the server
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memory_status=$(free -gh | grep Mem: | awk '{print $4"/"$2}')
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# create the temp file holding our value
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echo -e " $cpu_st1.$cpu_st2% $memory_status" > $file_status
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# update string in the update-all function
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update-all
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}
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function update-date {
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# time and date format
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#current=$(date '+%A %e-%b-%y @ %H:%M')
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current_date=$(date '+%e-%b-%y @%H:%M')
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# create the temp file holding our value
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echo -e " $current_date" > $file_date
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# update string in the update-all function
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update-all
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}
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function update-weather {
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# weather string format
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#current=$(curl -s wttr.in/Burnham,Buckinghamshire\?format\="%C,+%t+%w+%q\n")
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current_weather=$(curl -s wttr.in/Burnham,Buckinghamshire\?format\="%t+%w+%q\n")
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# create the temp file holding our value
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echo -e " $current_weather" > $file_weather
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# update string in the update-all function
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update-all
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}
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#############################
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## INITIATE THE START-LOOP ##
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#############################
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start-loop "$@"
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