I'd recommend a somewhat different approach from @bmike: rather than trying to remove the bad parts from the current file, start over and add back just the good parts. It looks like there's a lot more bad than good in the current file, so this should be simpler.
What's really really really bad in the current file is the section that starts like this:
cat << EOF >> ~/.bash_profile
...and somewhere down below that there'll be
EOF alone on a line. The problem is that this isn't an instruction to set up your environment, it's instructions to add instructions to your ~/.bash_profile. In other words, every time your ~/.bash_profile runs, it adds another copy of the stuff between
EOF to the end of ~/.bash_profile, so the file gets longer and longer and longer... and has more and more copies of the messed up instructions.
At this point, your ~/.bash_profile will be huge, and mostly garbled nonsense.
So, I recommend starting over. Rename and save the current file, so you can refer back to it if necessary, then create a new blank .bash_profile in your home directory. I recommend BBEdit for this -- it has a free demo mode that'll do everything you need here, and (unlike most text editors) it won't do "helpful" things like converting plain ASCII quotes (like
") to fancy unicode quotes (like
”) that mess up shell scripts. It also doesn't complain about saving files with names that start with ".".
From the section visible in your screenshot, this is the only part of the current file that looks right:
# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
# Add Visual Studio Code (code)
export PATH="$PATH:/Applications/Visual Studio Code.app/Contents/Resources/app/bin"
There might be something you actually want further down, but since the
cat part starts shortly after that I doubt it. In any case, this should be enough to get you a basically functional setup; if there are some things that still don't work, you may have to look through the old file for other things that need salvaging.