retry:tldr:1b4c7

The command "retry ${command}" is used when you want to repeatedly execute a specific command or set of commands, depending on the value stored in the variable "command".

Here's how it works:

1. The variable "command" holds the specific command or set of commands that you want to execute repeatedly.
2. The keyword "retry" is used to indicate that the specified command should be retried if it fails.
3. When the "retry" command is encountered, the specified "command" is executed once.
4. If the execution of the "command" is successful, the program continues to execute the next line of code after the "retry" command.
5. However, if the execution of the "command" fails (e.g., returns an error or exception), the program goes back to the "retry" command and executes the "command" again.
6. This process continues until the execution of the "command" is successful or a certain condition is met (e.g., a maximum number of retries is reached).

In summary, the "retry ${command}" command is used to repeatedly execute a specific command until it succeeds or meets a certain condition.