How can I regain control of .bash_profile after making changes to $PATH?

Question

Hi,
Today, I installed Android ADB on my MBP (late 2013) and used the following guide to get it started: http://www.droidviews.com/a-comprehensive-guide-to-adb-android-debug-bridge-and- commands/ - that guide said I should make a change to ~/bash_profile in order to get the settings right. Here's what I did (copied from the link):
Open terminal window and type following: nano ~/.bash_profile
This shall open the .bash_profile file. Now enter the following line to define ADB path. export PATH=${PATH}:~/android-sdk-macosx/tools export PATH=${PATH}:~/android-sdk-macosx/platform-tools
Then, I saved and closed the terminal window.
Now, I cannot use a lot of terminal commands anymore - sudo, latex, rm, all only give me:
-bash: latex: command not found
If I try to access ~/.bash_profile, I get the following error:
-bash: /Users/richard/.bash_profile: Permission denied
I tried this:
RMBP:~ richard$ echo $PATH
{PATH}:/Users/richard/android-sdk-macosx/platform-tools
which only shows me that I have changed the path.
Is there any way I can regain access to the .bash_profile file and control over the Terminal in general?
Any help would be highly appreciated, thanks in advance!

Answer 1

I solved the problem, it seems, by doing the following:
I found the defective .bash_profile file by using Omni Disk Sweeper, and deleted it right away. Someone else here in the support forum had a similar problem and solved it this way, so that's how I got the idea. The Terminal works nicely now and no other signs of trouble have come up yet.