![]() (and how do I make the "stop" command and explain how to find the processes to watch for the "status" command?.) So, what is the slick, modern, "intended systemd way" to do it that really allows us to utilize all the "improvements" and "simplification" systemd gives us? Surely it should be able to handle something more complex than a simple one-process daemon started in a single line and killed with a SIGINT? Should I maybe create a systemd unit and manually specify calling my old script there in every command, like this: ExecStart=/etc/init.d/minecraft start For "status", it has to monitor the Java process, and for stop, it has to send a command to the Minecraft console and then wait for both Java and screen to die! I also want to be sure that systemd will not just try to SIGHUP or SIGINT or SIGTERM it! But it's not that easy!! You can't just kill Minecraft's PID (not to mention it's different from the screen's PID)! I want to write more complex scripts for every action, maybe even add new actions like "command" (okay, I've already accepted that it's probably not possible at all). Type in the conditions and the executable name, and systemd will handle its starting, stopping and who knows what else. Like it's all systemd needs to monitor the daemon. I see that an average systemd service basically consists of some requirements and ExecStart. Apparently, systemctl just makes the simplest unit file possible on its own, and hopes it will suffice! Now I'm wondering if systemd is actually incapable of handling such complex situations at all! I've started to look for information about how systemd is better than sysV, and what can I do to simplify and empower everything. It doesn't start properly, it doesn't stop properly, it does not display status properly, not to mention the absence of the "command" command. "Well," I thought, "now it's recognized by systemd, and now I can control it via systemctl - and it should probably just use my old script to process the commands!" And turns out I was very much wrong. I remember having problems with some startup scripts before apparently, just putting a script into /etc/init.d and marking it executable is no longer enough - I had to "enable" them in order to make them work. I remember systemd developers promising that "old sysV scripts will just work as they did before", but turns out it's not so easy! Still, I'm actually very supportive of systemd - it really looks like a lot of improvement, simplification and centralization. But for now, I keep my old-style script because it's awesome. Now I've upgraded to Debian Jessie, which has systemd. It can even pass a command to Minecraft with /etc/init.d/minecraft command - this is useful for scheduled backups. It is a very good script it runs Minecraft in a "screen" it can ensure Minecraft is never started twice and it waits for Minecraft to shut down when stopped. To send the text in the file MSG.DAT as a message to all sessions for username TERRYJ, type: msg TerryJ < MSG.I've been running a Minecraft server with a sysV init script. To send a message to all sessions contained in the file USERLIST, type: msg Logout because your session will be reset To send a message to session 12, type: msg 12 Call John at 11:00 To send a message to session MODEM02, type: msg modem02 Let's meet at 1PM today ![]() To send the message titled Falafel? to all sessions for user MIKES, type: msg MIKES Falafel? If a single wildcard is present (*), it specifies all users in the system. If the you specify the name of a session, it must identify an active session. If no user or session is specified, msg displays an error message. The user must have Message access permission for the session. ? (help): Displays the syntax for the command and information about the command's options. v(verbose): Displays information about the actions being performed. w (wait): Wait for a response from the target user(s). ![]() time:seconds (time delay): Sets the amount of time you must wait before you receive confirmation from the target session that the message has been received. Otherwise, the current Terminal Server is used. server:servername: Allows the Terminal Server to be specified. ![]() If no message is entered, standard input (STDIN) is read for the message. Message (message string): The text of the message you want to send. SessionID: Specifies the ID of the session.įilename: Identifies a file containing a list of usernames, sessionnames, and sessionIDs to which to send the message. The name was created by the system administrator when the session was configured. Sessionname: Identifies the name of the session. This article introduces syntax and parameters of Terminal Server commands MSG.Īpplies to: Windows 10 - all editions Original KB number: 186480 Summary ![]()
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