diff --git a/shellscript/.bashrc b/shellscript/.bashrc
index ba4aa76..1348ce6 100644
--- a/shellscript/.bashrc
+++ b/shellscript/.bashrc
@@ -1,6 +1,8 @@
 #if [ "$TERM" == "linux" ]; then
 #    LANG=C
 #fi
+#export LANG
+
 PS1='\[\e[1;32m\]\D{%F %T}\[\e[0m\] \[\e[1;34m\]\w\[\e[0;1m\]
 \$ \[\e[0m\]'
 #if [ "$TERM" == "xterm" ]; then
@@ -8,19 +10,25 @@ PS1='\[\e[1;32m\]\D{%F %T}\[\e[0m\] \[\e[1;34m\]\w\[\e[0;1m\]
 #\$ \[\e[0m\]'
 #fi
 PS2=""
+export PS1
+export PS2
+
 #PATH="/Applications/wxMaxima.app/bin:$PATH"
 #PATH="/Applications/gnuplot.app/bin:$PATH"
 PATH="/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin:$PATH"
-#export PATH=/opt/local/bin:/opt/local/sbin/:$PATH
-#export MANPATH=/opt/local/man:$MANPATH
-#EDITOR=vi
-HISTSIZE=80000
-HISTFILESIZE=$((HISTSIZE*2))
-#重複履歴を無視
+PATH=/opt/local/bin:/opt/local/sbin:$PATH
+MANPATH=/opt/local/man:$MANPATH
+export PATH
+export MANPATH
+
+export HISTSIZE=80000
+export HISTFILESIZE=$((HISTSIZE*2))
 export HISTCONTROL=ignoredups
 export HISTTIMEFORMAT='%Y-%m-%d %T '
+
 #complete -c man sudo gksu
 complete -c man sudo
+
 alias ls='ls -G'
 alias l='ls -alh'
 alias cp='cp -v'