How can I edit the $PATH on linux?

"To permanently store your path, you have a few options.

I suggest you read the Ubuntu community wiki on Environment Variables but the short answer is the best place is ~/.profile for your per-user PATH setting or /etc/profile for global settings.

Do something like export PATH=$PATH:/your/new/path/here"

"You can also put this in the global environment:

sudo emacs /etc/environment

Append to the entries already in your path

PATH=""/path/to/file:/other/paths""

Reload the environment

source /etc/environment"

"A variant from above, if you don't want to change the /etc/profile file directly.
You can create a new file yourpath.sh in the /etc/profile.d/ directory. Then edit this file like that. With vim editor (but feel free to edit it with another editor):
vim /etc/profile.d/yourpath.sh

MYPATH='/your/new/path/'
export MYPATH
export PATH=$PATH:$MYPATH

:write and quit and it's done your path has been modified. If your are using the terminal, close it and reopen it . your new variable will be updated.
Now it is cleaner, you can remove this file when you don't need it anymore and it doesn't interfer with the initial configuration."

"All answers intend to add to the PATH but this is how you remove an environment variable

Suppose you had the path

PATH=/home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/x86_64-arago-linux/usr/bin:...other variables...:/snap/bin

and want to remove the first variable /home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/x86_64-arago-linux/usr/bin.

Open the .profile and edit it

$ gedit ~/.profile

A text editor open up with the hated variable as shown
Comment it out and after Ctrl+S, close this file.

Source the script

$ source /etc/environment

And Done :)

To verify, recheck the updated path using printenv."

"If you're using ZSH, you can edit your paths like this:
nano ~/.zshrc"