55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
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#!/bin/bash
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# set the keyboard brigthness on a Apple MacBook computer
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# Copyright (C) 2006 Ludovic Rousseau <ludovic.rousseau@free.fr>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#set -v
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#set -x
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BRIGHTNESS=/sys/class/leds/smc\:kbd_backlight/brightness
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value=$(cat $BRIGHTNESS)
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if [ -z "$1" ]; then
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echo $value
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exit
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fi
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if [ "$1" = "-h" ]; then
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echo "Usage: $0 [-h|arg|+arg|-arg]"
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echo
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echo "Change the keyboard brigthness to:"
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echo " arg"
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echo " or current value + arg"
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echo " or current value - arg"
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echo
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echo "Without argument it return the current value"
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exit
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fi
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if [ $(expr match "$1" "[+-]") = "1" ]; then
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value=$((value$1))
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else
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value=$1
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fi
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if [ $value -lt 0 ]; then
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value=0
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fi
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echo $value > $BRIGHTNESS
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cat $BRIGHTNESS
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