Terminal Signals

• https://unix.stackexchange.com/questions/362559/list-of-terminal-generated-signals-eg-ctrl-c-sigint
• Ctrl + C ⇒ SIGINT
• Ctrl + - ⇒ SIGQUIT
• Ctrl + Z ⇒ SIGTSTP
• View meaning of symbols

stty -a

• View Kill signals
  • Interesting Signals
    • HUP (hang up)
    • INT (interrupt)
    • QUIT (quit)
    • ABRT (abort)
    • KILL (non-catchable, non-ignorable kill)
    • ALRM (alarm clock)
    • TERM (software termination signal)

kill -l
# HUP INT QUIT ILL TRAP ABRT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM URG STOP TSTP CONT CHLD TTIN TTOU IO XCPU XFSZ VTALRM PROF WINCH INFO USR1 USR2
 
man kill
 
# sending SIGKILL
kill -9 <pid>

When you cannot kill a process

• https://superuser.com/questions/243460/what-to-do-when-ctrl-c-cant-kill-a-process