From adc5d3f6eefd1f5fde0a652252c53c0a5eb13b77 Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@recursive.engineer>
Date: Thu, 25 Jun 2026 16:47:09 -0400
Subject: [PATCH] Don't panic if no batteries are found on Linux.

---
 tcshrc.system.Linux | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/tcshrc.system.Linux b/tcshrc.system.Linux
index 3bde16c..083b7ff 100644
--- a/tcshrc.system.Linux
+++ b/tcshrc.system.Linux
@@ -2,10 +2,15 @@ _debug "Sourcing tcshrc.system.Linux..."
 
 unsetenv CSHENV_BATTERY_DEVICE
 unsetenv CSHENV_SHOW_BATTERY_LEVEL
-foreach location ( /sys/class/power_supply/BAT* )
-setenv CSHENV_BATTERY_DEVICE ${location}/capacity
-setenv CSHENV_SHOW_BATTERY_LEVEL
-end
+
+set battery_locations=( `ls /sys/class/power_supply/ | grep 'BAT'` )
+
+if ( $#battery_locations > 0 ) then
+	foreach location ( /sys/class/power_supply/BAT* )
+		setenv CSHENV_BATTERY_DEVICE ${location}/capacity
+		setenv CSHENV_SHOW_BATTERY_LEVEL
+	end
+endif
 
 # Set the acknowledgement bit, essentially
 setenv CSHENV_SYSTEM_CONFIGURED Linux