What command would be used to kill all dd jobs in Linux?

The command to kill all dd jobs in Linux is typically killall dd. This command sends the default signal (SIGTERM) to all processes with the name dd, effectively terminating them.

While the chosen answer mentions sending a USR1 signal, which is often used with dd to instruct it to print statistics, this does not serve the purpose of killing the processes. To kill the processes, it's necessary to send the SIGTERM signal without any specific options attached.

Additionally, using sudo killall -9 dd would forcibly terminate all dd processes by sending the SIGKILL signal, but it is not the most graceful way to handle process termination as it does not allow the processes to clean up resources.

On the other hand, simply running kill dd is inadequate because kill requires a process ID (PID) and cannot directly target processes by name like killall can.

Understanding the correct command usage is essential for managing processes effectively in a Linux environment. Using killall dd is the most appropriate way to ensure all instances of the dd command are terminated properly.