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-rwxr-xr-xbin/linux/setbright23
1 files changed, 23 insertions, 0 deletions
diff --git a/bin/linux/setbright b/bin/linux/setbright
new file mode 100755
index 0000000..42cd48f
--- /dev/null
+++ b/bin/linux/setbright
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -euo pipefail
+
+current=$(brightnessctl -m info | cut -d, -f4 | tr --delete '%')
+case $1 in
+ up)
+ increment=$(( 5 - ( current % 5 ) ))
+ new=$(( current + increment ))
+ if [ $new -gt 100 ]; then
+ new=100
+ fi
+ brightnessctl set $new% > /dev/null 2>&1
+ echo $new;;
+ down)
+ increment=$(( ( ( current - 1 ) % 5 ) + 1 ))
+ new=$(( current - increment ))
+ if [ $new -lt 0 ]; then
+ new=0
+ fi
+ brightnessctl set $new% > /dev/null 2>&1
+ echo $new;;
+esac