Linux process check and restart

I have a test server, some times I need to monitor one test service and keep it always active. I plan to use crontab and shells to make a small solution to fix this problem.

1.Check serivce status

Service_check.sh

#!/bin/bash

service_name_process=$(pgrep -f service_name)
# We can use "ps -ef |grep 'service_name' | grep -v 'grep' | awk '{print $1}'" 

# Check main programme status
if [[ $service_name_process = "" ]];then
cd /path &&
# /path replace your own path
sh service_name_start.sh
# start.sh use your service start command 
# like "nohup /path/service /path/service.ini >> /path/service.log 2>&1 &"

echo service start successful!
else
echo service is running!
fi

2.Timed execution through crontab

crontab -e

shellcheck is a good service for shells. https://www.shellcheck.net/