-function _bash_profile_addpath # variable,dirpathname
-{
- if [ '!' -d "$2" ];then return;fi
- if [ -z "`eval "echo \\${$1}"`" ];then
- eval "$1='$2'"
- else
- # we want to override any original directories, place dirpathname first!
- eval "$1=\"$2:\${$1}\""
- fi
- export "$1"
-}