From ad895dfd4fba7ac2eff0f60ab166b22581f0fa6d Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@recursive.engineer>
Date: Fri, 26 Jun 2026 15:55:02 -0400
Subject: [PATCH] Fix battery auto-detect on Linux

---
 tcshrc.system.Linux | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tcshrc.system.Linux b/tcshrc.system.Linux
index 083b7ff..bcbbd1c 100644
--- a/tcshrc.system.Linux
+++ b/tcshrc.system.Linux
@@ -3,10 +3,12 @@ _debug "Sourcing tcshrc.system.Linux..."
 unsetenv CSHENV_BATTERY_DEVICE
 unsetenv CSHENV_SHOW_BATTERY_LEVEL
 
-set battery_locations=( `ls /sys/class/power_supply/ | grep 'BAT'` )
+set battery_locations=( `ls /sys/class/power_supply/ | grep 'BAT[[:digit:]]+$' | xargs` )
 
-if ( $#battery_locations > 0 ) then
-	foreach location ( /sys/class/power_supply/BAT* )
+_debug "Locations: ${battery_locations}"
+
+if( ${#battery_locations} > 0 ) then
+	foreach location ${battery_locations}
 		setenv CSHENV_BATTERY_DEVICE ${location}/capacity
 		setenv CSHENV_SHOW_BATTERY_LEVEL
 	end