From 88b4f21dd842a7a26188860aa97a22ac94608a27 Mon Sep 17 00:00:00 2001
From: 10sr <8slashes+git@gmail.com>
Date: Sat, 30 Jun 2012 00:46:18 +0900
Subject: [PATCH] fix bug

---
 bashrc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bashrc b/bashrc
index 1f92afe..9500a0f 100755
--- a/bashrc
+++ b/bashrc
@@ -481,7 +481,8 @@ __my_ps1_bttry(){
     local bst="/tmp/${USER}-tmp/batterystatus"
     if test -z "$DISPLAY" && ! iswindows
     then
-        test -f $bst && echo "[Battery:$(cat $bst)]"
+        test -f $bst && local bstr="$(cat $bst)"
+        test -n "$bstr" && echo "[Battery:$bstr]"
         __my_battery_status %s >$bst &
     fi
     return $last