install npm (node have been installed, npm missed)

Ubuntu version is 18.04.1 LTS

I need to upgrade node version. So following some forum recommendations I've uninstalled npm and node:

sudo npm uninstall npm -g
sudo apt-get purge --auto-remove nodejs

install latest version of node:

curl -sL | bash -
sudo apt update
sudo apt install nodejs

checking results:

> node --version
v11.6.0
> npm -v
bash: /usr/local/bin/npm: No such file or directory

trying to fix:

sudo apt-get install npm

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies: npm : Depends: nodejs but it is not going to be installed Depends: node-abbrev (>= 1.0.4) but it is not going to be installed Depends: node-ansi (>= 0.3.0-2) but it is not going to be installed Depends: node-ansi-color-table but it is not going to be installed Depends: node-archy but it is not going to be installed Depends: node-block-stream but it is not going to be installed Depends: node-fstream (>= 0.1.22) but it is not going to be installed Depends: node-fstream-ignore but it is not going to be installed Depends: node-github-url-from-git but it is not going to be installed Depends: node-glob (>= 3.1.21) but it is not going to be installed Depends: node-graceful-fs (>= 2.0.0) but it is not going to be installed Depends: node-inherits but it is not going to be installed Depends: node-ini (>= 1.1.0) but it is not going to be installed Depends: node-lockfile but it is not going to be installed Depends: node-lru-cache (>= 2.3.0) but it is not going to be installed Depends: node-minimatch (>= 0.2.11) but it is not going to be installed Depends: node-mkdirp (>= 0.3.3) but it is not going to be installed Depends: node-gyp (>= 0.10.9) but it is not going to be installed Depends: node-nopt (>= 3.0.1) but it is not going to be installed Depends: node-npmlog but it is not going to be installed Depends: node-once but it is not going to be installed Depends: node-osenv but it is not going to be installed Depends: node-read but it is not going to be installed Depends: node-read-package-json (>= 1.1.0) but it is not going to be installed Depends: node-request (>= 2.25.0) but it is not going to be installed Depends: node-retry but it is not going to be installed Depends: node-rimraf (>= 2.2.2) but it is not going to be installed Depends: node-semver (>= 2.1.0) but it is not going to be installed Depends: node-sha but it is not going to be installed Depends: node-slide but it is not going to be installed Depends: node-tar (>= 0.1.18) but it is not going to be installed Depends: node-underscore but it is not going to be installed Depends: node-which but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Question

Is any ideas, how to fix broken packages and install npm of latest version?

More details:

following answer.

dpkg --get-selections | grep hold

prints nothing.

> sudo aptitude -f install node
env: ‘aptitude’: No such file or directory

different answers have not helped me.

1 Answer

I have not managed my issues with broken packages (it seems hard to detect ones, but hoping somebody knows answer). But I've managed issue with node and npm.

To install node i've used article how to manage nodes with nvm.

install nvm:

> curl | bash
> source ~/.bashrc # to reload env

check accessibe versions for install:

> nvm ls-remote # to find latest stable version
> nvm install v11.6.0 # install node

and now I've installed:

> node -v
v11.6.0
> npm -v
6.5.0-next.0

Npm can be updated following their instruction:

npm install npm@latest -g