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path: root/.config/scripts/mute_mac_chime.sh
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Diffstat (limited to '.config/scripts/mute_mac_chime.sh')
-rw-r--r--.config/scripts/mute_mac_chime.sh12
1 files changed, 12 insertions, 0 deletions
diff --git a/.config/scripts/mute_mac_chime.sh b/.config/scripts/mute_mac_chime.sh
new file mode 100644
index 00000000..a00c8e3e
--- /dev/null
+++ b/.config/scripts/mute_mac_chime.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# this needs to be ran as proper root (> su)
+
+# remove immutable flag
+chattr -i /sys/firmware/efi/efivars/SystemAudioVolume-7c436110-ab2a-4bbb-a880-fe41995c9f82
+
+# macos terminal uses BELL code (0x07) to audibly play system messages/warnings (such as the startup chime
+# that simply confirms POST was successful and lets everyone else in the room know as well) so set it to null
+printf "\x07\x00\x00\x00\x00" > /sys/firmware/efi/efivars/SystemAudioVolume-7c436110-ab2a-4bbb-a880-fe41995c9f82
+
+# replace immutable flag
+chattr +i /sys/firmware/efi/efivars/SystemAudioVolume-7c436110-ab2a-4bbb-a880-fe41995c9f82