Export command generators

[Zeko369]

Clear and concise description of the problem

Export i.e. yarnInstall(packages: string[])
which would generate yarn install foo, and a generic install(pm: PackageManager, packages: string [])

Suggested solution

Simply extract and export internal functionality

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[HawtinZeng]

Why u use install(pm: PackageManager, packages: string []) instead of ni packageA packageB...? The latter command is more concise.