nvmのinstall

1.nvmのinstall

2.nodeの現在のversion

# node -v
v18.1.0

3.nvmのdownload

# curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 15037  100 15037    0     0  27540      0 --:--:-- --:--:-- --:--:-- 27489
=> Downloading nvm from git to '/root/.nvm'
=> Cloning into '/root/.nvm'...
remote: Enumerating objects: 355, done.
remote: Counting objects: 100% (355/355), done.
remote: Compressing objects: 100% (302/302), done.
remote: Total 355 (delta 39), reused 169 (delta 28), pack-reused 0
Receiving objects: 100% (355/355), 221.36 KiB | 3.07 MiB/s, done.
Resolving deltas: 100% (39/39), done.
* (HEAD detached at FETCH_HEAD)
  master
=> Compressing and cleaning up git repository

=> Appending nvm source string to /root/.bashrc
=> Appending bash_completion source string to /root/.bashrc
=> You currently have modules installed globally with `npm`. These will no
=> longer be linked to the active version of Node when you install a new node
=> with `nvm`; and they may (depending on how you construct your `$PATH`)
=> override the binaries of modules installed with `nvm`:

/usr/local/lib
tqq corepack@0.10.0
tqq eslint@8.15.0
tqq ganache@7.1.0
tqq n@8.2.0
tqq npm-upgrade@3.1.0
tqq pm2@5.2.0
mqq uuid@8.3.2
=> If you wish to uninstall them at a later point (or re-install them under your
=> `nvm` Nodes), you can remove them from the system Node as follows:

     $ nvm use system
     $ npm uninstall -g a_module

=> Close and reopen your terminal to start using nvm or run the following to use it now:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
#

3.~/.bashrcに変更が加えられている
ここで、nodeへのpathを切り替えている

# cat ~/.bashrc
# ./bashrc
・・・
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

# source ~/.bashrc
#

4.参考
https://github.com/nvm-sh/nvm/blob/master/README.md