tlmgr-pinning:tldr:3cac4

The command "tlmgr pinning show" is used in TeX Live to display information about package pinning. Here's a breakdown of each component:

• "tlmgr": This is the command-line tool for managing TeX Live installations. It allows you to install, update, and remove TeX-related packages and programs.
• "pinning": Refers to a feature in TeX Live that allows you to "pin" or lock a specific version of a package, preventing it from being automatically upgraded or downgraded by subsequent package installations or updates.
• "show": This is the argument to the "pinning" option that specifies you want to display information about the current pinning configuration.

When you run the "tlmgr pinning show" command, it will provide you with a list of packages that are currently pinned (if any) and their respective versions. This can help you ensure that certain critical packages remain at specific versions to maintain compatibility with your documents or to avoid potential issues with newer versions.