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#!/bin/sh
. "lib_common.sh"
. "lib_handle.sh"
help() {
cat << EOF
${progname}: Wrapper script to change backlight
options:
-i [Brg] Increase backlight by Brg
-d [Brg] Decrease backlight by Brg
-s [Brg] Set backlight to Brg
-p Show the current backlight
-h Print this message and exit
NOTE: Script interprets values as percentages
EOF
exit 0
}
brightness_handle check_program
[ ${#} != 1 ] && [ ${#} != 2 ] && invalid_use
while getopts "i:d:s:tph" option; do
case "${option}" in
i) run --reload-status brightness_handle up "${OPTARG}" ;;
d) run --reload-status brightness_handle down "${OPTARG}" ;;
s) run --reload-status brightness_handle set "${OPTARG}" ;;
t) run --reload-status brightness_handle toggle ;;
p) brightness_handle get-current ;;
h) help ;;
*) invalid_use -h ;;
esac
done
invalid_use
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