List all known signal numbers, names, and descriptions.
Kill the controlled process.
Send the SIGTERM signal to the listed jobs.
Send the given signal to the listed jobs.
job may be a process ID or may be specified in any of the following ways:
Kill the current job.
Kill the previous job.
Kill job number number.
Kill the job that begins with string.
Kill the job that contains string.
signal is the name of a signal.