steps.txt

# Fist install the last version nodejs
$ apt install -y nodejs # Debian/Ubuntu
$ pacman -S nodejs npm # Archlinux
$ yum install nodejs # RHEL/Defora
$ xbps-install -Sy nodejs # Voidlinux

# then install some pkgs from npm repo/manager
# more info: https://docs.npmjs.com/downloading-and-installing-packages-globally

$ sudo npm i -g @amgular/cli # to install angular cli https://cli.angular.io/

# after that the binaries is installed in /usr/bin/* in the case of angular-cli is /usr/bin/ng 
# that the symlink points to ../lib/node_modules/@angular/cli/bin/ng 
# first if you try
$ ng 
command not found
# if you try
$ /usr/bin/ng
denied permission

# for some reason put the current user (glats in this case) as owner in the installation:
$ cd /usr/bin
$ ls -l npm
npm -> ../lib/node_modules/npm/bin/npm-cli.js
$ sudo ls -l ../lib/node_modules/npm/bin/npm-cli.js
-rwxr-xr-x 1 root root 4592 feb 15 03:49 ../lib/node_modules/npm/bin/npm-cli.js
$ ls -l ng
ng -> ../lib/node_modules/@angular/cli/bin/ng
$ sudo ls -l ../lib/node_modules/@angular/cli/bin/ng
-rwxr-x--- 1 glats glats 881 oct 26  1985 ../lib/node_modules/@angular/cli/bin/ng