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--- welcome:ubuntu:small_tricks [2021/07/13 18:22]
127.0.0.1 modification externe
+++ welcome:ubuntu:small_tricks [2023/01/08 15:11] (Version actuelle)
arnaud [Attendre la fin du script]
@@ Ligne 1: / Ligne 1: @@
 <color #22b14c>**Small tricks for Ubuntu**</color>
+====== Add a network interface (Ubuntu22) by CLI ======
+  * list the interfaces <code># ip link show</code>
+  * activate the interface <code># ifconfig ens19 up</code>
+  * set the IP of the interface: <code># nano /etc/netplan/00-installer-config.yaml</code> and add the interface name and the settings
+  * apply the settings:<code># netplan apply</code>
 ====== Auto-connect VPN and Wifi ======
 <note>runs on Ubuntu18 LXDE</note>
@@ Ligne 17: / Ligne 22: @@
 [SeatDefaults]
 session-setup-script=/etc/lightdm/lightdm.conf.d/restart-NM.sh </code>
+====== Beep ======
+Pour activer le "beep":
+  * <code># apt-get install beep</code>
+  * tester si le beep fonctionne: <code>$ sudo modprobe pcspkr     // ce réglage ne supportera pas un reboot!!
+$ beep</code>
+  * Rendre persistant: <code>$ sudo nano /etc/modprobe.d/blacklist.conf
+....</code> et commenter la ligne ''blacklist pcspkr''
@@ Ligne 43: / Ligne 56: @@
 Install and run the script given here: http://c-nergy.be/blog/?p=11868 \\
 See https://help.ubuntu.com/community/xrdp too.
+====== Run a script at startup ======
+https://linuxconfig.org/how-to-run-script-on-startup-on-ubuntu-20-04-focal-fossa-server-desktop
+<code>$ sudo cat /usr/local/bin/wol-omv.sh
+#!/bin/bash
+/usr/sbin/etherwake -i enp34s0 00:11:22:33:44:55</code>
+<code>
+$ sudo cat /etc/systemd/system/wol-omv.service
+[Unit]
+After=network-online.target
+Wants=network-online.target
+[Service]
+ExecStart=/usr/local/bin/wol-omv.sh
+[Install]
+WantedBy=default.target
+</code>
+<code># chmod 744 /usr/local/bin/wol-omv.sh
+# chmod 664 /etc/systemd/system/wol-omv.service
+</code>
+<code>sudo systemctl daemon-reload
+# systemctl enable wol-omv.service</code>
+===== Attendre la fin du script =====
+<note important>Ceci est un brouillon!</note>
+https://unix.stackexchange.com/questions/599372/kill-systemd-oneshot-service-after-timeout \\
+https://trstringer.com/simple-vs-oneshot-systemd-service/ \\
+https://docs.fedoraproject.org/en-US/quick-docs/understanding-and-administering-systemd/
+<code>
+$ sudo cat /etc/systemd/system/le-service.service
+[Unit]
+After=network-online.target
+Wants=network-online.target
+[Service]
+Type=oneshot
+TimeoutStartSec=10s
+ExecStart=/usr/local/bin/le-script.sh
+[Install]
+WantedBy=default.target
+</code>
+Il faut un "TimeoutStartSec" et non un "TimeoutStopSec" car "Behavior of oneshot is similar to simple; however, the service manager will consider the unit started after the main process exits."
 ====== Terminal ======

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