diff --git a/install_shell/set_fcitx.sh b/install_shell/set_fcitx.sh
index 3d1203c..6c28fe0 100755
--- a/install_shell/set_fcitx.sh
+++ b/install_shell/set_fcitx.sh
@@ -1,9 +1,12 @@
 #!/bin/bash
 
+set -x -e
+
 IM_CONFIG=/usr/share/config/kdm/Xsession
 
-grep "LC_CTYPE" /etc/csh.cshrc
-if [ $? -ne 0 ];then
+#grep "LC_CTYPE" /etc/csh.cshrc
+#if [ $? -ne 0 ];then
+if grep -q -v "LC_CTYPE" /etc/csh.cshrc;then
 	echo "setenv LC_CTYPE zh_CN.gb18030">>/etc/csh.cshrc
 fi
 
@@ -20,8 +23,9 @@ fi
 line1=$(grep -n $1 $IM_CONFIG  | tail -n 1 | cut -d: -f1)
 line2=$(grep -n ${imethod} $IM_CONFIG | tail -n 1 | cut -d: -f1)
 
-grep $1 $IM_CONFIG | tail -n 1 | grep '#' &> /dev/null
-if [ $? -eq 0 ];then
+#grep $1 $IM_CONFIG | tail -n 1 | grep '#' &> /dev/null
+#if [ $? -eq 0 ];then
+if grep "$1" "$IM_CONFIG" | tail -n 1 | grep '#';then
 	sed -i "${line1}s@#@@" $IM_CONFIG
 	sed -i "${line2}s@^@#&@" $IM_CONFIG
 	echo "$1 change successful."