Add tmux alias

.bashrc

@@ -45,9 +45,11 @@ shopt -s histappend
 #
 if [ "`uname -s`" == "FreeBSD" -o "`uname -s`" == "Darwin" ]; then
     alias ls="/bin/ls -aFG"
+    alias tmux="TERM=xterm-256color /usr/local/bin/tmux"
     alias w="/usr/bin/w -i"
 elif [ "`uname -s`" == "Linux" ]; then
     alias ls="/bin/ls -aF --color=always"
+    alias tmux="TERM=screen-256color /usr/bin/tmux"
 else
     alias ls="/bin/ls -aF"
 fi