measure-command:tldr:1192a

The command "Measure-Command { ${command} }" is a PowerShell command that is used to measure the time it takes to execute a given command or a block of code.

Here's how the command works:

1. "Measure-Command" is the cmdlet that starts the time measurement for the command or code block that follows it. It starts recording the time when the command block is executed, and stops when it finishes.

2. "{ ${command} }" represents the placeholder for the actual command that you want to measure. You need to replace "${command}" with the specific command or code block that you want to measure.

For example, if you want to measure the time it takes to execute the command "Get-Process" (which retrieves information about running processes), you would use the following command:

Measure-Command { Get-Process }

After executing this command, PowerShell will measure the time it takes to execute the "Get-Process" command and provide the output, which includes properties like "Days", "Hours", "Minutes", "Seconds", and "Milliseconds" that represent the elapsed time.

This command is useful for performance testing and optimization, as it helps you identify bottlenecks and optimize the execution time of PowerShell commands or code blocks.