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  2. Signal (IPC) - Wikipedia

    en.wikipedia.org/wiki/Signal_(IPC)

    SIGTERM The SIGTERM signal is sent to a process to request its termination. Unlike the SIGKILL signal, it can be caught and interpreted or ignored by the process. This allows the process to perform nice termination releasing resources and saving state if appropriate. SIGINT is nearly identical to SIGTERM. SIGTSTP

  3. kill (command) - Wikipedia

    en.wikipedia.org/wiki/Kill_(command)

    The two exceptions SIGKILL and SIGSTOP are only seen by the host system's kernel, providing reliable ways of controlling the execution of processes. SIGKILL kills the process, and SIGSTOP pauses it until a SIGCONT ("continue") is received. [3] Unix provides security mechanisms to prevent unauthorized users from killing other processes.

  4. C signal handling - Wikipedia

    en.wikipedia.org/wiki/C_signal_handling

    In the C Standard Library, signal processing defines how a program handles various signals while it executes. A signal can report some exceptional behavior within the program (such as division by zero), or a signal can report some asynchronous event outside the program (such as someone striking an interactive attention key on a keyboard).

  5. exit (system call) - Wikipedia

    en.wikipedia.org/wiki/Exit_(system_call)

    When the child process terminates ("dies"), either normally by calling exit, or abnormally due to a fatal exception or signal (e.g., SIGTERM, SIGINT, SIGKILL), an exit status is returned to the operating system and a SIGCHLD signal is sent to the parent process.

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  8. Magic SysRq key - Wikipedia

    en.wikipedia.org/wiki/Magic_SysRq_key

    Send the SIGTERM signal to all processes except init (PID 1) e. e: f: Call oom_kill, which kills a process to alleviate an OOM condition f: u: f: t: When using Kernel Mode Setting, switch to the kernel's framebuffer console. [5] If the in-kernel debugger kdb is present, enter the debugger. g: i: g: d: Output a terse help document to the console

  9. SIGHUP - Wikipedia

    en.wikipedia.org/wiki/SIGHUP

    Symbolic signal names are used because signal numbers can vary across platforms, but XSI-conformant systems allow the use of the numeric constant 1 to be used to indicate a SIGHUP, which the vast majority of systems in fact use.