bup:tldr:34d74

The command bup -d ${path-to-repository} index ${path-to-directory} is used to index a directory in the Bup backup system. Here's a breakdown of each component:

• bup: This is the command line utility for the Bup backup system. Bup is a highly efficient backup tool that uses the Git packfile format for storage.
• -d ${path-to-repository}: This option specifies the path to the Bup repository where the backups are stored. The ${path-to-repository} placeholder should be replaced with the actual path to the repository on your system. The repository is a folder that contains the backup data.
• index: This subcommand tells Bup to perform an indexing operation on the specified directory.
• ${path-to-directory}: This is the path to the directory that you want to index. The ${path-to-directory} placeholder should be replaced with the actual path to the directory you wish to include in the backup. The indexing process will identify the changes in the directory and record them in the Bup repository.

To summarize, the command bup -d ${path-to-repository} index ${path-to-directory} initiates the indexing process for a specified directory and records the changes in the Bup backup repository.