So you've followed this "tutorial":
During that it told you to:
printf “PATH=$%sPATH:%s/bin/feedingbottle/\n” | tee -a ~/.bashrc
If you look closely you'll see that it's using curly quotes instead of the straight double-quotes (eg
"). To Bash curly quotes are just another character, they aren't special like straight quotes.
So what you've actually done is added this whole corrupted line into
~/.bashrc. You need to fix it. Open
~/.bashrc in Gedit, or whatever you like, find this line (it's almost certainly at the bottom) and replace it with:
And be more careful in the future.