.tool-versions

Whenever a .tool-versions file is present in a directory, the tool versions it declares will be used in that directory and any subdirectories.

This is what a .tool-versions file looks like:

ruby 2.5.3
nodejs 10.15.0

You can also include comments:

ruby 2.5.3 # This is a comment
# This is another comment
nodejs 10.15.0

Tip

Use the search command to find the exact tool names and versions you wish to use.

You can specify system in place of the version if you wish to use the system installed binary instead of zxcv managed ones.

Note

The entire asdf-spec is not supported. Only a simpler version of it defined above.