20 lines
430 B
Bash
Executable File
20 lines
430 B
Bash
Executable File
#!/bin/bash
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DIR="/sys/class/backlight/"
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if [[ -d "${DIR}acpi_video0" ]]; then
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DIR="${DIR}acpi_video0"
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elif [[ -d "${DIR}intel_backlight" ]]; then
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DIR="${DIR}intel_backlight"
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else
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echo "not found "
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exit 33
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fi
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cat "${DIR}/brightness" "${DIR}/max_brightness" | gawk '
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NR==1 { cbr=$1 }
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NR==2 { mbr=$1 }
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END {
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printf("%d%\n", cbr/mbr*100)
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printf("%d\n", cbr/mbr*100)
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print("\n")
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}
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'
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