How do I add a new route to the PATH variable? Although this question is being answered many times, I could not find any help from previous posts, so here it is again.

I have tried to add a new route to PATH variable with no success. 

I have added the following command: 

export PATH=$PATH:/usr/local/zend/share/ZendFramework/bin


to this files one at a time: ~/.profile, ~/.bash_profile, ~/.bashrc

After starting a new Terminal session I type

env


but the PATH variable never show the changes.

EDIT:

Seems that none of this files are being read when opening terminal, other routes where in this files and they are not being added either. On starting terminal I get this message "-bash: : command not found". If I execute

source ~/.profile


I get the route added to the PATH but it does not keep for the next Terminal session. How can I test what is happening on Terminal startup?

This are the contents of the files:

~/.profile

export PATH=/applications/MAMP/bin/php5.3/bin/:$PATH
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
export MANPATH=/opt/local/share/man:$MANPATH
export PATH=/usr/local/zend/share/ZendFramework/bin:$PATH


~/.bashrc

export PATH=$PATH:/usr/local/zend/bin
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/zend/lib


~/.bash_profile is empty

None of the routes in any of them are displayed after typing

env


in Terminal.
well first off you only really need it in  ~/.bash_profile if you have one.

Second opening a new terminal session without quitting terminal app will not source the  ~/.bash_profile file.

You can just type "source  ~/.bash_profile" in the terminal and it should pick up your new settings.

Or quit terminal.app and restart it.