Linux restarts the Tomcat service on a regular basis

1: Check the status of the Crond service (confirm that the Linux Task Scheduler service is turned on)

Service Crond Status

Crond (PID 1937) is running ...

2: Write the SH executable file that restarts Tomcat restart_tomcat.sh

#!/bin/sh

#./etc/profile

Export java_home=/usr/java/jdk1.8.0_112

sh/opt/apache-tomcat-9.0.0.m11/bin/shutdown.sh

Sleep 60s

sh/opt/apache-tomcat-9.0.0.m11/bin/startup.sh

3: Manually test whether the file can be executed

[Email protected] bin]#./restart_tomcat.sh

-bash:./restart_tomcat.sh:/bin/sh^m:bad interpreter:no such file or directory

The above error is because restart_tomcat.sh is created directly under the window system and needs to be modified in the format of the file.

For the Linux system format, execute the following command in turn:

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Assigning Permissions to Files

chmod 777 restart_tomcat.sh

then modify the file format  
VI restart_tomcat.sh
use the following command to view the file format  
: Set FF or: Set FileFormat
You can see the following information
Fileformat=dos or Fileformat=unix
use the following command to modify the file format  
: Set Ff=unix or: Set Fileformat=unix
Save exit
: Wq

After performing the above operation, perform the discovery execution OK again

[Email protected] bin]#./restart_tomcat.sh

Using catalina_base:/opt/apache-tomcat-9.0.0.m11

Using Catalina_home:/opt/apache-tomcat-9.0.0.m11

Using Catalina_tmpdir:/opt/apache-tomcat-9.0.0.m11/temp

Using Jre_home:/usr/java/jdk1.8.0_112

Using CLASSPATH:/opt/apache-tomcat-9.0.0.m11/bin/bootstrap.jar:/opt/apache-tomcat-9.0.0.m11/bin/tomcat-juli.jar

Using catalina_base:/opt/apache-tomcat-9.0.0.m11

Using Catalina_home:/opt/apache-tomcat-9.0.0.m11

Using catalina_tmpdir:/opt/apache-tomcat-9.0.0.m11/temp

Using Jre_home:/usr/java/jdk1.8.0_112

Using CLASSPATH:/opt/apache-tomcat-9.0.0.m11/bin/bootstrap.jar:/opt/apache-tomcat-9.0.0.m11/bin/tomcat-juli.jar

Tomcat started.

4: Add crontab Task Scheduler

[Email protected] bin]# CRONTAB-E

0 1 * * */opt/apache-tomcat-9.0.0.m11/bin/restart_tomcat.sh

Execute the restart_tomcat.sh file under the specified path every 1 o'clock in the morning

Linux restarts the Tomcat service on a regular basis