node常用命令汇总

$ node -v
$ npm -v

# 1.查看指定版本信息/或全部版本
$ npm list [查看指定版本信息]
# 2.简写
$ npm ls

$ npm install [包名/版本号]

# 1.安装淘宝源
$ npm install -g cnpm --registry=https://registry.npm.taobao.org
# 2.查看版本
$ cnpm -v
# 3.单次使用淘宝镜像源
$ npm install --registry=https://registry.npm.taobao.org

$ npm update [包名/版本号]

$ npm uninstall [包名] --save-dev

$ npm config ls

# 此命令会列出所有已经过时的包，可以及时进行包的更新
$ npm outdated [[<@scope>/]<pkg> ...]

$ npm help [指定命令]

$ npm root [-g]

$ npm cache add <tarball file>
$ npm cache add <folder>
$ npm cache add <tarball url>
$ npm cache add <name>@<version>

$ npm cache ls [<path>]

$ npm cache clean [<path>]
# 最常用命令清除npm本地缓存
$ npm cache clean

$ npm start [-- <args>]

$ npm stop [-- <args>]

$ npm restart [-- <args>]

$ npm test [-- <args>]
$ npm tst [-- <args>]

"scripts": {
    "test": "gulp release"
},

$ npm install --save-dev gulp-imagemin
npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! network request to https://registry.npmjs.org/gulp-imagemin failed, reason: getaddrinfo ENOTFOUND registry.npmjs.org
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:

# 1.先查看npm配置,以下为正常配置
$ npm config ls
; cli configs
metrics-registry = "http://registry.cnpmjs.org/"
scope = ""
user-agent = "npm/6.14.5 node/v12.16.2 win32 x64"

; userconfig C:\Users\Administrator\.npmrc
registry = "http://registry.cnpmjs.org/"

; builtin config undefined
prefix = "C:\\Users\\Administrator\\AppData\\Roaming\\npm"

; node bin location = C:\Program Files\nodejs\node.exe
; cwd = W:\MoBai_Blog\blog
; HOME = C:\Users\Administrator
; "npm config ls -l" to show all defaults.
# 2.查看代理,必须要两个的返回值都为null才行
$ npm config get proxy
$ npm config get https-proxy
# 3.如果不为null,请添加null
$ npm config set proxy null
$ npm config set https-proxy null
# 4.换淘宝镜像
npm config set registry http://registry.cnpmjs.org/
# 5.安装cnpm
npm install -g cnpm --registry=https://registry.npm.taobao.org 
# 6.重新下载npm包即可,一般到这一步基本上就搞定了

![rejected]  master->master(fetch first)  
error:failed to push some refs to 'https://github.com/xxx/xxx.git'

# 第一步执行git pull
$ git pull
# 第二步重新git push
$ git push origin master
# 如果以上步骤都不行,可以使用强制推送,但是本地所有log会清空
$ git push -f origin master