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- #!/bin/sh
- BRIGHTNESS_FILE=/etc/current_brightness
- BRIGHTNESS_DEFAULT_VALUE=100
- # Check args
- if [ ${#} -ne 0 ]; then
- echo "Usage: $(basename ${0})"
- exit 1
- fi
- # Sanity check: File does not exist
- if [ ! -f ${BRIGHTNESS_FILE} ]; then
- echo ${BRIGHTNESS_DEFAULT_VALUE} > ${BRIGHTNESS_FILE}
- fi
- # Sanity check: Check if integer
- brightness=$(cat ${BRIGHTNESS_FILE})
- if ! [ ! "${brightness}" -ne "${brightness}" ] 2> /dev/null; then
- echo ${BRIGHTNESS_DEFAULT_VALUE} > ${BRIGHTNESS_FILE}
- brightness=${BRIGHTNESS_DEFAULT_VALUE}
- fi
- echo ${brightness}
- exit 0
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