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  2. Command pattern - Wikipedia

    en.wikipedia.org/wiki/Command_pattern

    A sample UML class and sequence diagram for the Command design pattern. [3]In the above UML class diagram, the Invoker class doesn't implement a request directly. Instead, Invoker refers to the Command interface to perform a request (command.execute()), which makes the Invoker independent of how the request is performed.

  3. watch (command) - Wikipedia

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

    watch is a command-line tool, part of the Linux procps and procps-ng packages, that runs the specified command repeatedly and displays the results on standard output so the user can watch it change over time. By default, the command is run every two seconds, although this is adjustable with the -n secs argument.

  4. at (command) - Wikipedia

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

    This parameter runs the given command on every specified day or days of the week or month. date This parameter specifies the date when to run the given command. One or more days of the week can be specified. If date is omitted, at uses the current day of the month. /next: This parameter runs command on the next occurrence of the day. command

  5. Sequence diagram - Wikipedia

    en.wikipedia.org/wiki/Sequence_diagram

    The diagram emphasizes events that cross the system boundary from actors to systems. A system sequence diagram should be done for the main success scenario of the use case, and frequent or complex alternative scenarios. There are two kinds of sequence diagrams: Sequence Diagram (SD): A regular version of sequence diagram describes how the ...

  6. cron - Wikipedia

    en.wikipedia.org/wiki/Cron

    The cron command-line utility is a job scheduler on Unix-like operating systems.Users who set up and maintain software environments use cron to schedule jobs [1] (commands or shell scripts), also known as cron jobs, [2] [3] to run periodically at fixed times, dates, or intervals. [4]

  7. Event loop - Wikipedia

    en.wikipedia.org/wiki/Event_loop

    Application libraries that are built on the GLib event loop include GStreamer and the asynchronous I/O methods of GnomeVFS, but GTK remains the most visible client library. Events from the windowing system (in X, read off the X socket) are translated by GDK into GTK events and emitted as GLib signals on the application's widget objects.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Signal (IPC) - Wikipedia

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

    [12] nohup is a command to make a command ignore the signal. SIGILL The SIGILL signal is sent to a process when it attempts to execute an illegal, malformed, unknown, or privileged instruction. SIGINT The SIGINT signal is sent to a process by its controlling terminal when a user wishes to interrupt the process.