Terminal (zsh) command not found for global npm installs - macos

Question

This is driving me nuts! I did a lot of googling and tried various things. (I do not consider this to be a superuser topic)
I'm having a lot of troubles with terminal lately. I must have messed up somewhere, because it used to work just fine and now I can't get it to recognize my commands anymore neither nvm or global npm packages like expo. It just gives me errors like this:
▶ expo
zsh: command not found: expo
▶ nvm ls
zsh: command not found: nvm
(BTW: npm, brew and j commands are found 🤔)
If I do echo $PATH I get:
/Users/norfeldt/Library/Android/sdk/tools/bin:/Users/norfeldt/Library/Android/sdk/tools:/Users/norfeldt/Library/Android/sdk/platform-tools:/Applications/anaconda/bin:~/Library/Python/2.7/bin:~/.npm-global/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
(strange behavior is that if I do echo $PATH again it returns two times the same output in one line)
A readable version of it (replacing : with :\n
/Users/norfeldt/Library/Android/sdk/tools/bin:
/Users/norfeldt/Library/Android/sdk/tools:
/Users/norfeldt/Library/Android/sdk/platform-tools:
/Applications/anaconda/bin:
~/Library/Python/2.7/bin:
~/.npm-global/bin:
/usr/local/bin:
/usr/bin:
/bin:
/usr/sbin:
/sbin
My .zshrc file looks like this:
# Node & NPM
#PATH="/usr/local/bin:$PATH"
PATH="~/.npm-global/bin:$PATH"
#PATH="~/.npm-global/lib/node_modules:$PATH"
# Git
alias master="git checkout master"
alias dev="git checkout develop"
alias hotfix="git flow hotfix"
alias feature="git flow feature"
alias tags="git push --tags"
# Pip - https://gist.github.com/haircut/14705555d58432a5f01f9188006a04ed
PATH="~/Library/Python/2.7/bin:$PATH"
# added by Anaconda2 4.4.0 installer
PATH="/Applications/anaconda/bin:$PATH"
# Android
export ANDROID_HOME=/Users/norfeldt/Library/Android/sdk
PATH="${ANDROID_HOME}/platform-tools:$PATH"
PATH="${ANDROID_HOME}/tools:$PATH"
PATH="${ANDROID_HOME}/tools/bin:$PATH"
alias emu="pushd ${ANDROID_HOME}/tools;emulator -avd Pixel_2; popd"
# Path to your oh-my-zsh installation.
export ZSH=/Users/norfeldt/.oh-my-zsh
ZSH_THEME="avit"
# Autojump
[[ -s `brew --prefix`/etc/autojump.sh ]] && . `brew --prefix`/etc/autojump.sh
# shell startup.
plugins=(git)
source $ZSH/oh-my-zsh.sh
# Load zsh-autosuggestions.
source /usr/local/share/zsh-autosuggestions/zsh-autosuggestions.zsh
# zsh-syntax-highlighting
source /Users/norfeldt/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
export PATH
ANY help would be HIGHLY appreciated!
UPDATE
Reading the kind answer from #l'L'l and this answer I did the following:
Updated my .bash_profile to
export NVM_DIR=~/.nvm
source ~/.nvm/nvm.sh
(it's the only thing in that file)
created a .bashrc by $touch .bashrc (Might have deleted the old one.. But this is just an empty file..)
Added the following lines to .zshrc
PATH="$PATH:$HOME/.npm-global/bin/" # Changed ~ to $HOME
PATH="$PATH:$HOME/.npm-global/lib/node_modules" # Changed ~ to $HOME
...
# Bash stuff
source ~/.bashrc
source ~/.bash_profile
Did a source ~/.zshrc and restarted my terminal.
NOW the nvm AND expo works! THANKS

Answer 1

There are a few things you might try, the first would be to source ~/.bash_profile from your .zshrc file. It's possible the nvm command was setup there and your zsh shell simply doesn't know it exists.
Note: On OS X, if you get nvm: command not found after running the
install script, one of the following might be the reason:-
your system may not have a .bash_profile file where the command is
set up. Simply create one with touch ~/.bash_profile and run the
install script again you might need to restart your terminal instance.
Try opening a new tab/window in your terminal and retry. If the above
doesn't fix the problem, open your .bash_profile and add
the following line of code:
source ~/.bashrc
For more information about this issue and possible workarounds, please
refer here
↑ Since you are using zsh instead at source ~/.bash_profile & ~/.bashrc in .zshrc.
If you used homebrew to install, then you might want to add the following into .zshrc:
export/source nvm installed with homebrew:
# source nvm
export NVM_DIR=~/.nvm
if hash brew 2>/dev/null; then
source $(brew --prefix nvm)/nvm.sh
source `brew --prefix`/etc/profile.d/z.sh
fi
npm not installed via homebrew:
export NVM_DIR="~/.nvm"
source ~/.nvm/nvm.sh
[[ -s "$NVM_DIR/nvm.sh" ]] && \. "$NVM_DIR/nvm.sh" # load nvm
[[ -s "$NVM_DIR/bash_completion" ]] && \. "$NVM_DIR/bash_completion" # load nvm bash_completion
↳ https://github.com/nvm-sh/nvm

Answer 2

I have no OSX to try... but the paths for zsh might belong into there:
/etc/paths, /private/etc/paths or into /private/etc/paths.d
Beside that, there's an auto-complete plugin for npm.