Loop Java program with bash

Question

I need to execute a java program in shell looply.

The program is really basic. I'm getting an access token and I'm using it to make a simple POST request.

My problem :

I need to refresh the access token every 55 minutes (the token has an hour expiration)
I need to make the POST every 5 min

I don't know which timer I should use in my shell command(and in my code ?)

If I put 5 min, this will refresh the token every 5 min...

Sorry I didn't provide any code, it's just an issue I don't know how to solve.

Thanks !

why don't you put the loop in your java app?

kejn
– kejn

2018-02-21 11:08:13 +00:00
Commented Feb 21, 2018 at 11:08 — kejn
– kejn, Commented Feb 21, 2018 at 11:08
Use cron, not a loop

OneCricketeer
– OneCricketeer

2018-02-21 11:09:59 +00:00
Commented Feb 21, 2018 at 11:09 — OneCricketeer
– OneCricketeer, Commented Feb 21, 2018 at 11:09
Use cron jobs to run your bash script.

Sandeep Singh
– Sandeep Singh

2018-02-21 11:12:42 +00:00
Commented Feb 21, 2018 at 11:12 — Sandeep Singh
– Sandeep Singh, Commented Feb 21, 2018 at 11:12

Pablo · Accepted Answer · 2018-02-21 11:17:38Z

1

If you are working in Linux you may use cron: Edit the /etc/crontab file and add a new line like this:

*/5 * * * * java -jar <your jar> <params>

This will run your program every 5 minutes.

answered Feb 21, 2018 at 11:17

Pablo

3073 silver badges8 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

J.Doe · Accepted Answer · 2018-02-21 11:37:23Z

0

Not sure I understood correctly. In bash you would like something like:

#!/bin/bash

while true; do
echo "refresh token";
a=0;

while true; do

  echo "doing post"
  echo "sleeping 5 minutes here"
  sleep 300;
  a=$[$a+1]

  if [ $a -eq 11 ]; then
    a=0
    echo "refreshing token again"
  fi

done;

done

Just translate it to java.

edited Feb 21, 2018 at 11:37

answered Feb 21, 2018 at 11:30

J.Doe

2991 gold badge7 silver badges16 bronze badges

Collectives™ on Stack Overflow

Loop Java program with bash

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related