strsignal - write signal identity
strsignal [-lmwx] signo ...
The strsignal(1) utility writes the textual description of the signal number as specified by the signo operand to standard output.
The options are as follows:
Interix maps signals the same as most traditional systems, but there are areas where different historical behaviors are incompatible. POSIX.2 mandates that certain historical numbers be recognized by the kill(1) command. Issuing a kill -9 will send a SIGKILL to the receiving process, regardless of the actual value of the SIGKILL macro. Use signal names for clarity.
The strsignal(1) utility exits 0 on success, and >0 if an error occurs.