Centos7.3 automatically starts or executes specified commands when booting

In centos7, the permissions of the /etc/rc.d/rc.local file have been reduced and there is no execution permission. You need to add executable permissions to it.

chmod +x /etc/rc.d/rc.local

Then you can add the command you want to start automatically.

vi /etc/rc.d/rc.local

Additional knowledge: centOS7.2 sets the custom script as a service and starts it at boot

When the spring boot jar package is deployed online, it is hoped that it can be set as a service and started at boot. The steps are as follows:

1. Prepare the script (there are many on the Internet, so I won’t write it here)

2. Create a soft link to the /etc/rc.d/init.d directory

ln -s /springboot/biz /etc/rc.d/init.d

Source file (absolute path) Target path (absolute path)

3. Add execution permissions:

chmod +x biz

4. When executing service abc start, if an error is reported:

line 4: exec: java: not found

Then check the script and add the full path of java as follows:

exec /usr/java/jdk1.8.0_20/jre/bin/java -Xms128m -Xmx1024m -jar

5. Execute service biz start again and it starts successfully

6. Set the startup and modify the script. Add the following to the second line:

# chkconfig: 2345 99 99

7. Add startup:

chkconfig --add biz

chkconfig biz on

The above article about how to automatically start or execute specified commands on Centos7.3 at startup is all I want to share with you. I hope it can give you a reference, and I also hope that you will support 123WORDPRESS.COM.