diff options
| -rwxr-xr-x | xmonad/scripts/brightness.sh | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/xmonad/scripts/brightness.sh b/xmonad/scripts/brightness.sh index 77dc9b3f..be256bbf 100755 --- a/xmonad/scripts/brightness.sh +++ b/xmonad/scripts/brightness.sh @@ -1,30 +1,30 @@ #!/bin/sh set -eux -BRIGHTNESS_DIFF="${1}" +BRIGHTNESS_DIFF="$1" # base dir for backlight class BASEDIR='/sys/class/backlight/' # get the backlight handler -HANDLER="${BASEDIR}$(ls "${BASEDIR}")" +HANDLER="$BASEDIR$(ls "$BASEDIR")" # get current brightness -OLD_BRIGHTNESS="$(cat "${HANDLER}/brightness")" +OLD_BRIGHTNESS="$(cat "$HANDLER/brightness")" # get max brightness -MAX_BRIGHTNESS="$(cat "${HANDLER}/max_brightness")" +MAX_BRIGHTNESS="$(cat "$HANDLER/max_brightness")" # get current brightness % -OLD_BRIGHTNESS_P=$(( 100 * "${OLD_BRIGHTNESS}" / "${MAX_BRIGHTNESS}" )) +OLD_BRIGHTNESS_P=$(( 100 * "$OLD_BRIGHTNESS" / "$MAX_BRIGHTNESS" )) # calculate new brightness %, bounded by 0 100 range -NEW_BRIGHTNESS_P=$(("${OLD_BRIGHTNESS_P}" + "${BRIGHTNESS_DIFF}")) -NEW_BRIGHTNESS_P=$(("${NEW_BRIGHTNESS_P}" > 100 ? 100 : "${NEW_BRIGHTNESS_P}")) -NEW_BRIGHTNESS_P=$(("${NEW_BRIGHTNESS_P}" < 1 ? 1 : "${NEW_BRIGHTNESS_P}")) +NEW_BRIGHTNESS_P=$(("$OLD_BRIGHTNESS_P" + "$BRIGHTNESS_DIFF")) +NEW_BRIGHTNESS_P=$(("$NEW_BRIGHTNESS_P" > 100 ? 100 : "$NEW_BRIGHTNESS_P")) +NEW_BRIGHTNESS_P=$(("$NEW_BRIGHTNESS_P" < 1 ? 1 : "$NEW_BRIGHTNESS_P")) # calculate new brightness value -NEW_BRIGHTNESS=$(( "${MAX_BRIGHTNESS}" * "${NEW_BRIGHTNESS_P}" / 100 )) +NEW_BRIGHTNESS=$(( "$MAX_BRIGHTNESS" * "$NEW_BRIGHTNESS_P" / 100 )) # set the new brightness value -echo "${NEW_BRIGHTNESS}" > "${HANDLER}/brightness" || sudo chmod 666 "${HANDLER}/brightness" +echo "$NEW_BRIGHTNESS" > "$HANDLER/brightness" || sudo chmod 666 "$HANDLER/brightness" |