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public text v1 · immutable$ cat /tmp/foo.d
#!/usr/sbin/dtrace -s
proc:::signal-send
/execname == "sshd"/
{
printf("Pid: %d Signal: %d To pid: %d\n", pid, args[2], args[1]->pr_pid);
ustack();
}
$ /tmp/foo.d
dtrace: script '/tmp/foo.d' matched 1 probe
CPU ID FUNCTION:NAME
2 15293 sigtoproc:signal-send Pid: 19849 Signal: 11 To pid: 19849