mirror of
https://github.com/sbrl/bin.git
synced 2018-01-10 21:33:46 +00:00
46 lines
1.2 KiB
Bash
46 lines
1.2 KiB
Bash
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#!/usr/bin/env bash
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increment=10
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backlight_prefix=/sys/class/backlight/intel_backlight/
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echo $1
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if [[ "$1" = "decrease" ]]; then
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echo decreasing
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increment=$(expr -${increment})
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fi
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cur_brightness=$(cat ${backlight_prefix}brightness)
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max_brightness=$(cat ${backlight_prefix}max_brightness)
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new_brightness=$(expr ${cur_brightness} + ${increment})
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# Permissions changes on brightness:
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## change group to sbrl
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## add g+w
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# Old command:
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#gksudo -- bash -c "echo ${new_brightness} >${backlight_prefix}brightness"
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echo ${new_brightness} >${backlight_prefix}brightness
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####################
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### Notification ###
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####################
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### uncomment the following line to disable the notification
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#exit
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# Calculate the percentage
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new_percent=$(echo "(${new_brightness} / ${max_brightness}) * 100" | bc -l)
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new_percent=$(printf "%.1f" "${new_percent}")
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echo new_percent: $new_percent
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max_bar_length=100
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bar_length=$(echo "(${new_percent} / 100) * ${max_bar_length}" | bc -l)
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bar_length=$(printf "%.0f" "${bar_length}")
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n_bar=$(head -c $bar_length < /dev/zero | tr '\0' '=')
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# Kill the previous notification
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killall notify-osd
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notify-send "Brightness: ${new_percent}%" "${n_bar} (${new_brightness})"
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#notify-send "Brightness" "${new_percent}%"
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