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				@@ -2,12 +2,12 @@ 
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				 hostname=`hostname` 
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				 max_brightness=`cat /sys/class/backlight/intel_backlight/max_brightness` 
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				 brightness=`cat /sys/class/backlight/intel_backlight/brightness` 
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				-step=$(( max_brightness / 6 )) 
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				+step=$(( max_brightness / 8 )) 
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				 inc=2 
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				 low_delta=$(( brightness - step )) 
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				 high_delta=$(( brightness + step )) 
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				-if ( [ $1 = 'down' ] && [ $low_delta -gt 0 ] )  ||  ( [ $1 = 'up' ] && [ $high_delta -lt $max_brightness ] ) 
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				+if ( [ $1 = 'down' ] && [ $low_delta -ge $step ] )  ||  ( [ $1 = 'up' ] && [ $high_delta -le $max_brightness ] ) 
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				 then 
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				     for i in $(seq $step); do 
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				         case $1 in 
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