Informs a process of a floating-point error. Quits the process and produces a core dump.Īrithmetic exception. The user can generate this signal by pressing Ctrl+C or Delete. ![]() Usually means that the controlling terminal has been disconnected. Table 5.12 describes the most common signals an administrator is likely to use. The SIGTERM signal is the default signal sent to processes by commands such as k ill and pkill when no signal is specified. The SIGKILL signal is used to abort a process, and the SIGSTOP signal is used to pause a process. The SIGHUP signal is also sent to a process if the remote connection is lost or hangs up. The SIGHUP signal is used by some utilities as a way to notify the process to do something, such as re-read its configuration file. System administrators most often use the signals SIGHUP, SIGKILL, SIGSTOP, and SIGTERM. ![]() The kill command is used to send a signal to a process. ![]() These signals are ways for other processes to interact with a running process outside the context of the hardware. Solaris supports the concept of sending software signals to a process.
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