rtcwake:tldr:236b9

The command sudo rtcwake -m mem -s ${10} is used to put the system into sleep or suspension mode for a specified duration using the real-time clock (RTC).

Here is a breakdown of the command and its components:

1. sudo: This is a command that allows the subsequent command to be executed with root/administrative privileges. It is used to ensure that the system has the necessary permissions to execute the rtcwake command.

2. rtcwake: This command is used to control the real-time clock (RTC) of the system. It allows scheduling and performing specific actions such as suspending, hibernating, or waking up the system at a specified time.

3. -m mem: This specifies the sleep mode to be used. In this case, mem refers to the "standby" or "mem" mode, where the system is put into a low-power state but maintains the contents of memory, allowing for a faster wake-up time.

4. -s ${10}: This option specifies the duration for which the system should remain in the sleep state. The ${10} is a placeholder for a value that needs to be provided. You would replace ${10} with the desired duration (in seconds) for which the system should sleep. For example, if you want the system to sleep for 60 seconds, you would replace ${10} with 60.

Overall, the command sudo rtcwake -m mem -s ${10} allows you to suspend the system into a low-power mode for a specified duration using the real-time clock.