#CLI FAQ

#Unable to pass command line arguments correctly when using pnpm?

There are some differences between pnpm v6 and pnpm v7 in how they execute commands, and the following should be noted:

pnpm v7:

When using pnpm to call the commands in package.json, if you need to pass parameters to pnpm, you need to put the parameters before the command.

For example, using the pnpm --filter parameter to run the prepare command:

pnpm run --filter "./packages/**" prepare

If you need to pass parameters to the command, you need to put the parameters after the command.

For example, in the following package.json configuration:

{
  "scripts": {
    "command": "modern command"
  }
}

The way to pass parameters when running the command is:

pnpm run command --options

pnpm v6:

In the following package.json configuration:

{
  "scripts": {
    "command": "modern command"
  }
}

If you need to run modern command --option:

When using pnpm, you need to run pnpm run command -- --option.

This is because pnpm's handling of command parameters is different from that of Yarn, but similar to that of npm: when the -- string is not added, the parameters passed are for pnpm; when the -- string is used, the parameters passed are for running the script.

In the above example, the --option parameter is passed to modern command. If you run pnpm run command --option, the --option parameter will be passed to pnpm.

In summary:

When using pnpm v7, if passing parameters to pnpm, the parameters need to be placed before the command.

When using pnpm v6, if the parameters are passed to pnpm, -- is not required; if the parameters are passed to the script, the -- string needs to be added.