tlmgr-install:tldr:b644c
This command is a command-line instruction that uses the "sudo" command, which stands for "SuperUser Do", to run the "tlmgr" command with administrative privileges.
"tlmgr" is the TeX Live package manager, which is a tool used to manage TeX Live packages. TeX Live is a popular distribution of the TeX typesetting system, commonly used for creating documents with mathematical and scientific content.
The "install" subcommand is used to install a TeX Live package.
The "${package}" portion of the command is a placeholder that needs to be replaced with the actual package name you want to install. You should replace "${package}" with the name of the specific package you want to install.
In summary, this command with the correct package name will install the specified package using the TeX Live package manager with administrative privileges.