npm webpack: coomand not found - node.js

I'm running this command on linux:
sudo npm install -g webpack
I'm getting the following output:
/home/igor/.npm-global/bin/webpack ->
/home/igor/.npm-global/lib/node_modules/webpack/bin/webpack.js
/home/igor/.npm-global/lib └── webpack#1.13.3
which looks perfectly legit, but when I try to use:
webpack -h
I get the
webpack: command not found
How can I make webpack running from the command prompt?

The default directory for globally installed NPM modules is /usr/local, which will install the module binaries inside bin folder.
If you echo your $PATH environment variable you'll see that /usr/local/bin is in your path. That means when you run a command like webpack, macOS will try to find the binary in this folder or any other folder on your $PATH.
At some point you probably changed it to ~/.npm-global, which installed webpack binary into your /home/igor/.npm-global/bin/. As this folder is not in you $PATH, macOS did not find it. You can run npm config get prefix to confirm this.
Solution 1 is to add it to your path by changing your ~/.profile file. Just append export PATH=~/.npm-global/bin:$PATH to it and restart your terminal.
Solution 2 is to change back the default folder to /usr/local by running npm config set prefix '/usr/local'. In this case you won't need to change your PATH variable.

Try to install webpack localy on the path you're working with.

Related

Run Laravel Mix without a global nodejs and npm installation

I have a laravel project and I need to build styles and scripts with laravel-mix, but a testing server (Ubuntu 20.04.4) hasn't a globally installed node. Node and npm are in different folders in the system so I run commands like this:
/path/to/node /path/to/npm install
/path/to/node /path/to/npm run dev
But when I run npm run dev (this command runs laravel-mix build), I see the error:
> mazer#2.0.0 dev
> mix
/usr/bin/env: ‘node’: No such file or directory
In the package.json it looks like this:
"scripts": {
"dev": "mix"
...
}
I checked the laravel-mix package (in node_modules) and found this: #!/usr/bin/env node. The package checks the node var in this file, but there is no node var.
I don't need to change the env file, so how can I change this path or set a temporary system var? Is there any way to simulate that the variable is there?
I have one solution for this problem.
The issue regarding naming misspelling or path symlinks.
so that you need to link symlinks for nodejs with this command
ln -s /usr/bin/nodejs /usr/bin/node
or
sudo ln -s /usr/bin/nodejs /usr/bin/node
I resolved my issue with Docker, so now I run this command on git push:
docker run --rm -v /path/to/project:/var/www/html node:16.16.0-alpine npm run dev --prefix /var/www/html
Perhaps it will be useful to someone.
UPD
I found another way to resolve it, I use PATH incorrectly and for this reason it didn't work:
Wrong
I set paths to node and npm and then add it to PATH like this:
NODE_PATH="/path/to/node_folder/node"
NPM_PATH="/path/to/node_folder/npm"
PATH="${NODE_PATH}:${NPM_PATH}:$PATH"
And the system can't find npm and node anyway.
The right way
Add /path/to/node_folders (node and npm are in it) to PATH:
NODE_DIR="/path/to/node_folder"
PATH="${NODE_DIR}:$PATH"
And then, I can run just npm install and npm run dev without full paths to them.

Possible to include a command-line in a Node module without global install?

I have a small Node module that includes a command line script in the bin directory.
"bin": {
"generate": "./bin/generate.js"
}
The generate.js script is properly executable.
This all works fine if I run npm install -g. But I'd prefer not to globally install and only have the command generate work from inside the module folder. If I run npm install from the module folder, it does correctly install all of the dependencies in a node_modules subdirectory. But then generate from the command like gives me "No such file or directory."
Thx.
I never install node modules using -g. My solution for your problem is to add this to my $PATH
# add this to ~/.bashrc, ~/.zshrc, or ~/.profile, etc
export PATH="./node_modules/.bin:$PATH"
Now, so long as your in the root of your module, you can access any binaries that have been installed as modules.
As an example, less is commonly installed with
npm install -g less
However, if you have your PATH modified as described above, you could something like this
cd my_node_module
npm install --save less
lessc less/style.less css/style.css
Without the PATH modification, you would've seen
command not found: lessc
If you don't feel like altering your PATH, you can access the binary directly
cd my_node_module
npm install --save lessc
./node_modules/.bin/lessc a.less a.css
Yay, no more npm install -g ...

Modules are not installing globally with "npm -g install..."

On Ubuntu 12.04 x 64...
npm -g install hiredis redis
Installs fine and npm ls shows those modules, but only when I'm in node source directory
does not show when I'm in any other directory
For kicks, tried running the command while in that other directory- still no dice :(
They are installing globally, but you cannot see them with npm ls, in other directories. Because npm ls only shows local modules. If you want to list global modules you have to type: npm ls -g.
Sometimes another version or just a wrong path is referenced in the npm config file instead of the installed version.
This may cause node/npm to misplace global modules.
To check and fix:
In cmd line type: npm config list
You should get a list of configuration values, one of them is prefix.
Make sure the path in prefix is the same path (only without node.exe) as the actually installed node.exe path.
(this path is listed further down as node bin location)
If it's not, change it:
Either in the config file (in your user folder, named .npmrc)
Or, via cmd line: npm config set prefix "C:\Program Files\nodejs" (change path for ubuntu of course)
Reinstall the module/package you tried to install, don't forget -g for global.

NPM : how to source ./node_modules/.bin folder?

I have a problem on npm installation
I have created a project say project A
cd ~/projectA
npm install sails
but sails command is not found after installation.
I know that it is successfully install in ~/projectA/node_modules directory.
but the executable cannot be sourced. And i know it is installed ~/projectA/node_modules/.bin
How can I source the .bin automatically whenever I enter into this projectA folder?
Did I did something wrong?
I can give you an inelegant solution, which is working for me. I just exported my path in my .bashrc file.
export PATH="$PATH:./node_modules/.bin"
Edit: It's been a while, but I have changed my strategy to use npm scripts instead. In the above case, setup package.json as follows:
"scripts": {
"sails": "sails"
}
Which you can then run with
npm run sails
or with arguments
npm run sails -- <args>
You should use the npm bin command to get an absolute path to your current node bin directory.
For example:
➤ lessc
bash: lessc: command not found
➤ npm bin
/home/brice/[...]/node_modules/.bin
➤ export PATH=$(npm bin):$PATH
➤ lessc --version
lessc 1.7.3 (Less Compiler) [JavaScript]
This avoids the problem of relative paths, especially if you're going to be using this in a build system that will invoke the command in subdirectories.
A bit more robust is:
export PATH=$(npm bin):$PATH
You can either run it, add it to your shell profile, or create an alias like:
alias snpm='export PATH=$(npm bin):$PATH'
If you do go the alias route, be sure to use single quotes so it delays the execution of the variables!
To use on the command line like sails generate foo you will need to install the npm module globally.
npm install -g sails
You could also use the path to the bin in the command if you don't want to install globally:
./node_modules/sails/bin/sails.js generate foo
The official instructions for sails (https://github.com/balderdashy/sails) advises
To install the latest stable release with the command-line tool:
sudo npm -g install sails
This installs globally and adds to a directory like /usr/local/bin that should be in your $PATH.
But to answer the general question regarding the location of the binaries if you install locally, they should be placed in ./node_modules/.bin directory (so run ./node_modules/.bin/sails ...)
If you don't like to mess up with your PATH for running a npm script that isn't global -- e.g. you are the only one to use it --, I would personally recommend the use of an sh "alias".
npm install (locally) your beloved package (json-diff here, for instance)
cd ~ && npm install json-diff
alias it (save it in your ~/.xxxxrc file):
alias diffj "\`npm bin\`/json-diff !*"
Then, for diffing 2 json's:
diffj old.json new.json
In my ~/.bashrc, I have the following:
function nbin {
local dir;
dir=$(npm bin)
if [ -d "$dir" ]; then
( # subshell to not change this shell's $PATH
PATH=$dir:$PATH
eval "$#"
)
else
echo "\"$dir\" is not an npm binary directory." >&1
return 1
fi
}
I can then run executable foo in the .bin directory as:
nbin foo
Possible workaround with NPM 5.2+ using the npx command.
npx sails new test-project
See this question for a similar use case and elegant solutions.

Global Node modules not installing correctly. Command not found

I am having a problem installing global node modules and everything I find online says the solve is just adding -g. Which is not the problem. I believe it's a linking issue or wrong directory issue.
Here is what I do:
$ npm install -g express
npm http GET https://registry.npmjs.org/express
npm http 304 https://registry.npmjs.org/express
npm http GET https://registry.npmjs.org/range-parser/0.0.4
npm http GET https://registry.npmjs.org/mkdirp/0.3.3
...downloads correctly
$ express myapp
bash: express: command not found
However when I run the direct link location to express it works:
$ /usr/local/share/npm/bin/express myapp
create : myapp
create : myapp/package.json
create : myapp/app.js
... Builds app correctly
Where the module is:
$ which node
/usr/local/bin/node
$ node -pe process.execPath
/usr/local/Cellar/node/0.8.20/bin/node
$ npm link express
/Users/bentonrr/Development/Personal/node_modules/express -> /usr/local/share/npm/lib/node_modules/express
In my .bash_profile I have:
export PATH=/usr/local/bin:$PATH
export NODE_PATH=/usr/local/lib/node_modules:/usr/local/lib/node
Do I need to change my Node environment to download to correct folder? Is something not linking correctly? I am lost..
Thanks!
Other Specs:
$ node --version
v0.8.20
$ npm --version
1.2.11
$ brew --version
0.9.4
OSX Version 10.8.2
This may mean your node install prefix isn't what you expect.
You can set it like so:
npm config set prefix /usr/local
then try running npm install -g again, and it should work out. Worked for me on a mac, and the solution comes from this site:
http://webbb.be/blog/command-not-found-node-npm/
EDIT: Note that I just came across this again on a new Mac I'm setting up, and had to do the process detailed here on stackoverflow as well.
Add $(npm get prefix)/bin to your PATH (e.g., in .bashrc), like so:
echo "export PATH=$PATH:$(npm get prefix)/bin" >> ~/.bashrc
For more info, see npm help npm:
global mode:
npm installs packages into the install prefix at prefix/lib/node_modules and bins are installed in prefix/bin.
You can find the install prefix with npm get prefix or npm config list | grep prefix.
My npm couldn't find global packages as well. I did what Brad Parks suggested:
npm config set prefix /usr/local
Then I got a EACCES permissions error (DON'T USE sudo npm install -g <package>) and fixed it through the official npm docs: https://docs.npmjs.com/resolving-eacces-permissions-errors-when-installing-packages-globally
On the command line, in your home directory, create a directory for global installations:
mkdir ~/.npm-global
Configure npm to use the new directory path:
npm config set prefix '~/.npm-global'
In your preferred text editor, open or create a ~/.profile file and add this line:
export PATH=~/.npm-global/bin:$PATH
On the command line, update your system variables:
source ~/.profile
Then install a package globally and test it! For example:
npm install -g awsmobile-cli
awsmobile configure
In my case, The NODE_PATH environment variable was empty. Check whether it is empty-
echo $NODE_PATH
if the NODE_PATH is empty. Then change ~/.bash_profile and add NODE_PATH
nano ~/.bash_profile
export NODE_PATH=`npm root -g`
source ~/.bash_profile
Now install npm modules again and check whether that is being installed on the path npm root -g
For Windows users
Add this to your path: "%AppData%\npm"
I do not ever install any npm stuff, via sudo! I have my own reasons, but I just try to keep things simple, and user based, since this is a user development world, and not everyone has root access, and root/sudo installing things like this just seems to clutter up things to begin with. After all, all developers should be able to follow these instructions, not just privileged sudo users.
This particular system is a RHEL7 accessed via SSH:
Frequently one needs various versions of node, so I use NVM https://github.com/creationix/nvm
So with that said, I can show you a working example for -g global installs, using NVM, NPM, and node paths not using root.
set your prefix for .npm-packages if it isn't already. (note, thats a hyphen, not an underscore)
nvm config ls
prefix = "/home/<yourusername>/.npm-packages"
Then adjust your ~/.bash_profile or .bashrc if you prefer readup on why and which here, with the following information.
#PATH EXPORTS
NODE_MODULES=$HOME/.npm
NPM_PACKAGES=$HOME/.npm-packages/bin
export PATH=$PATH:$HOME/bin:$NODE_MODULES:$NPM_PACKAGES
#NVM ENABLE
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm
That pretty much covers all paths. For e.g., if you install gulp like this npm install -g gulp it symlinks in ~/.npm-packages/bin (note thats a hyphen, not an underscore). (no need for gulp-cli, or gulp-cl)
You can pretty much replace/comment-out all other node path exports. You can put this path info below any other path info you already have, safely, without it overwriting that stuff.
Check your global Node module's binary folder, and add it to your $PATH.
npm list -g | head -1
If you use nodenv, the path will change whenever you install a new global node version. Adding a node path like this solves my problem.
"$HOME/.nodenv/versions/$(nodenv global)/bin"
Shortcut for adding the path to zsh
$ echo 'export PATH="$HOME/.nodenv/versions/$(nodenv global)/bin"' >> ~/.zshrc
Add the following line to your ~/.bash_profile
export PATH="$HOME/.npm/bin:$PATH"
Load bash profile
bash -l
The problem I had was missing the binaries because the user specific .npmrc file in my home directory had bin-links set to false, though the default is true.
Just in case this is your problem check that none of your .npmrc files have it set to false.
Then re-installing all modules will create the binaries at the prefix so your PATH can see them.
It may seem like a hack, but setting up yarn when possible saves you a lot of node environment headaches for various unix distros.

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