As you can see, I have version 9 installed regularly.
npm install -g @angular/cli
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
/home/user/.npm-global/bin/ng -> /home/user/.npm-global/lib/node_modules/@angular/cli/bin/ng
> @angular/cli@9.1.1 postinstall /home/user/.npm-global/lib/node_modules/@angular/cli
> node ./bin/postinstall/script.js
+ @angular/cli@9.1.1
updated 1 package in 8.412s
┌─────────────────────────────────────────────────────────┐
│                 npm update check failed                 │
│           Try running with sudo or get access           │
│          to the local update config store via           │
│ sudo chown -R $USER:$(id -gn $USER) /home/user/.config  │
└─────────────────────────────────────────────────────────┘
user@computer:~$ npm list -g
/home/user/.npm-global/lib
├─┬ @angular/cli@9.1.1
But when ever I create new app with 'ng new app-name' I get version 8 installed. When I check for the version with 'ng --version' it says that v8 is installed.
ng --version    
Angular CLI: 8.0.3
Node: 12.16.2
OS: linux x64
Angular: 
... 
Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.800.3
@angular-devkit/core         8.0.3
@angular-devkit/schematics   8.0.3
@schematics/angular          8.0.3
@schematics/update           0.800.3
rxjs                         6.4.0
Can anyone help me?
 
     
    