我使用Linux Mint 19.我创建了一个简单的脚本“After_suspension”，它将运行三个命令。当Mint从暂停中醒来时，我正试图让它运行。
matthew@matthew-pc:~$ cat /usr/local/bin/After_suspension
#!/bin/bash
pon dsl-provider
sudo service fancontrol start
/usr/bin/mailnag
matthew@matthew-pc:~$ file /usr/local/bin/After_suspension
/usr/local/bin/After_suspension: Bourne-Again shell script, ASCII text executable
“mailnag”是(text/x-python)。我创建了以下服务文件，该文件已启用但失败。我该如何让它运行？我应该使用三个单独的服务文件来运行这三个命令吗？
matthew@matthew-pc:~$ cat /etc/systemd/system/After_suspension.service
[Unit]
After=suspend.target
[Service]
ExecStart=/usr/local/bin/After_suspension
[Install]
WantedBy=suspend.target
matthew@matthew-pc:~$ systemctl is-enabled After_suspension.service
enabled
matthew@matthew-pc:~$ systemctl is-active After_suspension.service
failed
matthew@matthew-pc:~$ systemctl status After_suspension.service
● After_suspension.service
Loaded: loaded (/etc/systemd/system/After_suspension.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Thu 2019-04-11 01:19:42 HKT; 3min 46s ago
Process: 11655 ExecStart=/usr/local/bin/After_suspension (code=exited, status=1/FAILURE)
Main PID: 11655 (code=exited, status=1/FAILURE)
Apr 11 01:19:11 matthew-pc After_suspension[11655]: File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 122, in __new__
Apr 11 01:19:11 matthew-pc After_suspension[11655]: bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
Apr 11 01:19:11 matthew-pc After_suspension[11655]: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbu
Apr 11 01:19:07 matthew-pc systemd[1]: Started
After_suspension.service.
Apr 11 01:19:07 matthew-pc systemd[1]: After_suspension.service: Main process exited, code=exited, status=1/FAILURE
Apr 11 01:19:42 matthew-pc pppd[11657]: Timeout waiting for PADO packets
Apr 11 01:19:42 matthew-pc pppd[11657]: Unable to complete PPPoE Discovery
Apr 11 01:19:42 matthew-pc pppd[11657]: Terminating on signal 15
Apr 11 01:19:42 matthew-pc pppd[11657]: Exit.
Apr 11 01:19:42 matthew-pc systemd[1]: After_suspension.service: Failed with result 'exit-code'.
以下是现在的“fancontrol.service”。
matthew@matthew-pc:~$ cat /lib/systemd/system/fancontrol.service
[Unit]
Description=fan speed regulator
# Run pwmconfig to create this file.
ConditionPathExists=/etc/fancontrol
After=lm-sensors.service
Documentation=man:fancontrol(8) man:pwmconfig(8)
[Service]
ExecStartPre=/usr/sbin/fancontrol --check
ExecStart=/usr/sbin/fancontrol
PIDFile=/var/run/fancontrol.pid
[Install]
WantedBy=multi-user.target
Systemd以root身份运行系统脚本，因此您尝试在没有X服务器活动的终端会话中以root身份启动GNOME磁盘，这就是您可能收到拒绝连接消息的原因。
您可能希望将该服务配置为用户服务（您可能也必须传递DISPLAY变量），或者首先尝试在脚本或systemd服务中设置DISPLAY变量。