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--- mywiki:linux:ubuntu_16.04 [2016/12/18 14:53] – created shaoguoh
+++ mywiki:linux:ubuntu_16.04 [2019/09/15 18:55] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
----++ create a customized daemon via systemd
+====== create a customized daemon via systemd ======
+   Create a ppa.service under folder /etc/systemd/system
+   sudo chmod +x /etc/systemd/system/ppa.service
+   sudo systemctl enable ppa
+   sudo systemctl status ppa
+   sudo systemctl daemon-reload
+File /etc/systemd/system/ppa.service
 <file>
-cat ppa.service
 [Unit]
 Description=ppa deamon
@@ Line 13: / Line 21: @@
 [Install]
 WantedBy=default.target
+</file>
+======  Singapore Timezone ======
+sudo dpkg-reconfigure tzdata
+sudo apt-get install ntp
+timedatectl
+<file>
+ Local time: Min 2016-12-18 17:00:11 SGT
+  Universal time: Min 2016-12-18 09:00:11 UTC
+        RTC time: Min 2016-12-18 09:00:11
+       Time zone: Asia/Singapore (SGT, +0800)
+ Network time on: yes
+NTP synchronized: yes
+ RTC in local TZ: no
 </file>