本文介绍了Linux如何使用Systemd和init.d配置服务

使用Systemd配置服务

开机初始化脚本

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nano /etc/systemd/system/rc-local.service

写入内容

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[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

执行脚本

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nano /etc/rc.local

写入内容

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#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
screen -dm cd /app/mcs&& screen -dm /app/jdk1.8.0_241/jre/bin/java -jar /app/mcs/1.12.2.jar nogui  -Xms 4G -Xmx 4G –server
echo "看到这行字，说明添加自启动脚本成功。"
exit 0

使用脚本

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chmod 755 /etc/rc.local
systemctl enable rc-local.service
systemctl start rc-local.service
systemctl status rc-local.service

使用init.d配置服务

在init.d目录下增加启动脚本

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sudo nano /etc/init.d/aria2c

添加脚本内容

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#!/bin/sh

case "$1" in
start)

 echo -n "已开启Aria2c"
 sudo aria2c --conf-path=Aria2绝对路径aria2.conf -D
;;
stop)

 echo -n "已关闭Aria2c"
 killall aria2c
;;
restart)

 killall aria2c
 sudo aria2c --conf-path=Aria2绝对路径/aria2.conf -D
;;
esac
exit

使用脚本

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sudo chmod 755 /etc/init.d/aria2c
sudo update-rc.d aria2c defaults
sudo service aria2c start
sudo service aria2c stop
sudo service aria2c restart