Kill command sends a signal to the process.
kill [options] id_process
-Nsignal sends a specified signal (where Nsignal – the number or name).
-l displays the number and names of signals.
The kill command sends a signal to the process. The signal default kill signal is TERM Usually this signal is designed to complete the process. For example, kill -9 123 terminates the process with ID 123. To view identifiers processes use the command ps. To view a list of names and number of signals type signal kill -l.